Annals of Occupational and Environmental Medicine

Volume 29; 2017

Research Articles

Association between working time quality and self-perceived health: analysis of the 3rd Korean working conditions survey (2011): Jaeyoup Jung, Gyuree Kim, Kyusung Kim, Domyung Paek, Sung-il Cho; Ann Occup Environ Med 2017;29:55. Published online November 13, 2017; DOI: https://doi.org/10.1186/s40557-017-0211-y

Background

Self-perceived health, a subjective assessment of one’s health condition, is an important health indicator at the level of quality of life. In this study, working time quality refer to job factors with qualitative aspects of working time. This study was conducted to investigate the association between working time quality and self-perceived health in paid workers in Korea.

Methods

In this study, 35,902 paid workers were analyzed based on the 3rd Korean working conditions survey. For independent variables, working time quality (working at night, working in the evenings, working on Sundays, working on Saturdays, and working more than 10 h a day) were set as major job-related variables. Other occupational characteristics were divided into 6 groups and general characteristics were divided into 6 groups, and univariate analysis was conducted with self-perceived health, a dependent variable. Variables that had significance in the univariate analysis were used for multivariate logistic regression analysis.

Results

In the univariate analysis using Chi-square test, variables showing significance in self-perceived health were age, income, education, occupation, employment type, work hours per week, and shift work. Working time quality showed a significant association with self-perceived health. After adjusting for these variables using logistic regression analysis, working at night, working in the evening, working on Sundays, and working more than 10 h a day showed significant association with self-perceived health.

Conclusions

This study showed a statistically significant association between working time quality of employees with self-perceived health.

Citations

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Examining the structural effect of working time on well-being: Evidence from Abu Dhabi
Masood Badri, Mugheer Al Khaili, Hamad Aldhaheri, Guang Yang, Muna Al Bahar, Asma Al Rashdi
Social Sciences & Humanities Open.2022; 6(1): 100317. CrossRef
The mediating role of unhealthy behavior in the relationship between shift work and perceived health
Karin I. Proper, Eva Jaarsma, Suzan J. W. Robroek, Jolinda L. D. Schram, Hendriek Boshuizen, H. Susan J. Picavet, W. M. Monique Verschuren, Sandra H. van Oostrom
BMC Public Health.2021;[Epub] CrossRef
Comparison of Job Quality Indices Affecting Work–Life Balance in South Korea According to Employee Gender
Seung-Hye Choi, Eun Young Choi, Haeyoung Lee
International Journal of Environmental Research and Public Health.2020; 17(13): 4819. CrossRef
Salaried Workers’ Self-Perceived Health and Psychosocial Risk in Guayaquil, Ecuador
Antonio Ramón Gómez-García, Cecilia Alexandra Portalanza-Chavarría, Christian Arturo Arias-Ulloa, César Eduardo Espinoza-Samaniego
International Journal of Environmental Research and Public Health.2020; 17(23): 9099. CrossRef
Impact of Self-Rated Health on Progression to a Metabolically Unhealthy Phenotype in Metabolically Healthy Obese and Non-Obese Individuals
Mi-Hyun Kim, Yoosoo Chang, Hyun-Suk Jung, Hocheol Shin, Seungho Ryu
Journal of Clinical Medicine.2019; 8(1): 34. CrossRef
Association of discrimination and presenteeism with cardiovascular disease: the Fourth Korean Working Conditions Survey
Kyusung Kim, Sung-il Cho, Domyung Paek
Annals of Occupational and Environmental Medicine.2019;[Epub] CrossRef

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Reticulocytosis in screen-printing workers exposed to 2-butoxyethanol and 2-ethoxyethanol: Seng-Ho Song, Seong-Kyu Kang, Won-Jun Choi, Kyeong Min Kwak, Dong-Hoon Lee, Dyuk-Yoon Kang, Sang-Ha Lee; Ann Occup Environ Med 2017;29:54. Published online November 7, 2017; DOI: https://doi.org/10.1186/s40557-017-0210-z

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Background

Studies on the hematologic toxicity of ethylene glycol ethers in humans are limited. Therefore, the aim of this study was to examine the association between exposure to solvents (containing 2-butoxyethanol and 2-ethoxyethanol) and hematological effects.

Methods

Thirty-four screen-printing workers who were exposed to 2-butoxyethanol and 2-ethoxyethanol and 37 non-exposed clerical workers were selected using data from the health care facilities that provided regular health screening services. Student’s t-tests and Pearson’s chi-square tests were used to compare differences in hematological parameters between the exposed and the control groups. A multivariate analysis was performed using the multiple logistic regression models to adjust for other variables.

Results

The chi-square test showed the reticulocyte percentages and corrected reticulocyte counts to be significantly higher in the exposed group. The t-tests showed a significant increase in white blood cell counts, reticulocyte percentages, and corrected reticulocyte count (i.e., reticulocyte index) in the exposed group, with p-values of 0.002, 0.004, and 0.002, respectively. Multivariate analysis showed the odds ratio for the corrected reticulocyte counts to be 16.30 for the exposed group, when compared with that of the control group.

Conclusions

Exposure to 2-butoxyethanol and 2-ethoxyethanol was significantly associated with reticulocytosis, necessitating the implementation of preventive measures for workers prone to occupational exposure to ethylene glycol ethers.

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Hepcidin is not essential for mediating testosterone's effects on erythropoiesis
W. Guo, P. J. Schmidt, M. D. Fleming, S. Bhasin
Andrology.2020; 8(1): 82. CrossRef
Cleaning workers’ exposure to volatile organic compounds and particulate matter during floor polish removal and reapplication
Joonas Ruokolainen, Marko Hyttinen
Journal of Occupational and Environmental Hygiene.2019; 16(10): 685. CrossRef

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Factors increasing the risk for psychosocial stress among Korean adults living in rural areas: using generalized estimating equations and mixed models: Ju-Hyun Nam, Myeong-Seob Lim, Hyun-Kyeong Choi, Jae-Yeop Kim, Sung-Kyeong Kim, Sung-Soo Oh, Sang-Baek Koh, Hee-Tae Kang; Ann Occup Environ Med 2017;29:53. Published online October 31, 2017; DOI: https://doi.org/10.1186/s40557-017-0209-5

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Background

This study was conducted to analyze the distribution of the psychosocial well-being index among adults living in two rural communities in Korea and to examine its correlation with lifestyle variables such as sleep duration, regular exercise, and sedentary time.

Methods

Using the cohort data of the Atherosclerosis Risk of a Rural Area Korean General Population, this study examined 3631 participants living in Wonju and Pyeongchang in Gangwon Province; their preliminary data were established from 2005 to 2007 while their follow-up data were collected 3 years later. This study investigated demographic characteristics, lifestyle habits, disease history, Psychosocial Well-being Index-Short Form (PWI-SF) scores, sleep duration, regular exercise, and sedentary time during work. Using repeated measures ANOVA, this study examined how the variables and PWI-SF scores changed over the course of 3 years and identified the correlation between them based on mixed model analysis. Afterwards, using the generalized estimation equation, this study identified each variable’s risk towards the PWI-SF high-risk group and performed a stratified analysis by occupation after dividing the participants into farmers and non-farmers.

Results

The PWI-SF high-risk group was found to be 18.9% of the participants from preliminary data and 15.5% from follow-up data. The odds ratio towards the PWI-SF high-risk group was 1.503 (95% CI 1.241–1.821) in the short sleep duration group and 1.327 (95% CI 1.136–1.550) in the non-regular exercise group. A stratified analysis by occupation showed that middle and long sedentary time in the white-collar group increased the risk toward the PWI-SF high-risk group.

Conclusions

Short sleep duration, no regular exercise, and long sedentary time in the white-collar group were identified as risk factors toward the PWI-SF high-risk group in the rural communities, and policy interventions are needed to address this issue.

Citations

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The Association Between Short Sleep Duration and Depressive Symptoms Among Elderly Farmers
Sung Wook Song, Hyun Jung Lee, Jeong Rae Yoo, Jung-Hwan Oh
Journal of Sleep Medicine.2023; 20(3): 188. CrossRef
The Association between Psychosocial Stress and Type of Physical Activity in Middle Aged Adult: A Community-based Cohort Study
DooYong Park, Jae-Young Park, EunKyung Kim, YeonSoo Kim
The Korean Journal of Sports Medicine.2023; 41(3): 153. CrossRef
Using Wake-Up Tasks for Morning Behavior Change: Development and Usability Study
Kyue Taek Oh, Jisu Ko, Jaemyung Shin, Minsam Ko
JMIR Formative Research.2022; 6(9): e39497. CrossRef
Mild sleep restriction increases 24-hour ambulatory blood pressure in premenopausal women with no indication of mediation by psychological effects
Marie-Pierre St-Onge, Ayanna Campbell, Brooke Aggarwal, Jasmine L. Taylor, Tanya M. Spruill, Arindam RoyChoudhury
American Heart Journal.2020; 223: 12. CrossRef
Correlation of physical fitness with psychological well-being, stress, and depression in Korean adults
Bogja Jeoung
Journal of Exercise Rehabilitation.2020; 16(4): 351. CrossRef
Stress: Prevalence and correlates among residents of a suburban area
Archana Singh, Manisha Arora, Vishal Sharma, Atul Kotwal
Industrial Psychiatry Journal.2019; 28(1): 98. CrossRef
Difference in health status of Korean farmers according to gender
Ho Lee, Seong-yong Cho, Jin-seok Kim, Seong-yong Yoon, Bu-il Kim, Jong-min An, Ki-beom Kim
Annals of Occupational and Environmental Medicine.2019;[Epub] CrossRef

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Carbon disulfide exposure estimate and prevalence of chronic diseases after carbon disulfide poisoning-related occupational diseases: Hweemin Chung, Kanwoo Youn, Kyuyeon Kim, Kyunggeun Park; Ann Occup Environ Med 2017;29:52. Published online October 26, 2017; DOI: https://doi.org/10.1186/s40557-017-0208-6

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Background

In Korea, Carbon disulfide (CS₂) toxicity was an important social problem from the late 1980s to the early 1990s but there have been few large-scale studies examining the prevalence of diseases after CS₂ exposure discontinuance. So we investigated past working exposure to CS₂ characteristics from surviving ex-workers of a rayon manufacturing plant including cumulative CS₂ exposure index. Furthermore, we studied the prevalence of their chronic diseases recently after many years.

Methods

We interviewed 633 ex-workers identified as CS₂ poisoning-related occupational diseases to determine demographic and occupational characteristics and reviewed their medical records. The work environment measurement data from 1992 was used as a reference. Based on the interviews and foreign measurement documents, weights were assigned to the reference concentrations followed by calculation of individual exposure index, the sum of the portion of each time period multiplied by the concentrations of CS₂ during that period.

Results

The cumulative exposure index was 128.2 ppm on average. Workers from the spinning, electrical equipment repair, and motor repair departments were exposed to high concentrations of ≥10 ppm. Workers from the maintenance of the ejector, manufacturing of CS_2, post-process, refining, maintenance and manufacturing of viscose departments were exposed to low concentrations below 10 ppm. The prevalence for hypertension, coronary artery disease, cerebrovascular disease, diabetes, arrhythmia, psychoneurotic disorder, disorders of the nervous system and sensory organ were 69.2%, 13.9%, 24.8%, 24.5%, 1.3%, 65.7%, 72.4% respectively.

Conclusions

We estimated the individual cumulative CS₂ exposure based on interviews and foreign measurement documents, and work environment measurement data. Comparing the work environment measurement data from 1992, these values were similar to them. After identified as CS₂ poisoning, there are subjects over 70 years of average age with disorders of the nervous system and sensory organs, hypertension, psychoneurotic disorder, cerebrovascular disease, diabetes, coronary artery disease, and arrhythmia. Because among ex-workers of the rayon manufacturing plant, only 633 survivors recognized as CS₂ poisoning were studied, the others not identified as CS₂ poisoning should also be investigated in the future.

Citations

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Bioorthogonal Delivery of Carbon Disulfide in Living Cells
Ruohan Zhao, Yinghan Chen, Yong Liang
Angewandte Chemie International Edition.2024;[Epub] CrossRef
Bioorthogonal Delivery of Carbon Disulfide in Living Cells
Ruohan Zhao, Yinghan Chen, Yong Liang
Angewandte Chemie.2024;[Epub] CrossRef
Quantification and Removal of Volatile Sulfur Compounds (VSCs) in Atmospheric Emissions in Large (Petro) Chemical Complexes in Different Countries of America and Europe
Joaquín Hernández-Fernández, Heidi Cano, Susana Rodríguez-Couto
Sustainability.2022; 14(18): 11402. CrossRef
Role of environmental toxicants in the development of hypertensive and cardiovascular diseases
Ehsan Habeeb, Saad Aldosari, Shakil A. Saghir, Mariam Cheema, Tahani Momenah, Kazim Husain, Yadollah Omidi, Syed A.A. Rizvi, Muhammad Akram, Rais A. Ansari
Toxicology Reports.2022; 9: 521. CrossRef
Rapid Gas-Sensing Detection of Carbon Disulfide by a CdS/SnS Nanocomposite-Based Cataluminescence Sensor
Bai Sun, Guoji Shi, Zhuo Tang, Pengyu Zhang, Yuxian Guo, Shuguang Zhu, Jinyun Liu
Chemosensors.2022; 11(1): 10. CrossRef
Associations of urinary carbon disulfide metabolite with oxidative stress, plasma glucose and risk of diabetes among urban adults in China
Tao Xu, Bin Wang, Xing Wang, Shijie Yang, Limin Cao, Weihong Qiu, Man Cheng, Wei Liu, Linling Yu, Min Zhou, Dongming Wang, Jixuan Ma, Weihong Chen
Environmental Pollution.2021; 272: 115959. CrossRef

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Relationship of activities outside work to sleep and depression/anxiety disorders in Korean workers: the 4th Korean working condition survey: Sung Won Jung, Kyung-Jae Lee, Hee Sung Lee, Guang Hwi Kim, Jae Gwang Lee, June-Hee Lee, Joo Ja Kim; Ann Occup Environ Med 2017;29:51. Published online October 11, 2017; DOI: https://doi.org/10.1186/s40557-017-0206-8

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Background

Sleep disorders and depression/anxiety disorders are long-standing and significant problem for mental health. Also there are already known so many negative health effect of these disorders. But there were few studies to examine the association between activities outside work and forementioned disorders. So this study aimed the association of those things by using the Republic of Korean data.

Methods

Data from 32,232 wage workers were used in the 4th Korean Working Condition Survey. General and occupational characteristics, sleep disorders, depression/anxiety disorders and activities outside work are included in questionnaire. To find the relationship between activities outside work and sleep, depression/anxiety disorders, multivariate logistic regression analysis was used after adjusting for general and occupational characteristics.

Results

We observed that volunteer activities increased the odds ratio of both sleep disorders and depression/anxiety disorders(Odds ratio[OR] = 1.35, 95% confidence interval[CI]: 1.03–1.78 and OR = 1.54, 95% CI: 1.29–1.84, respectively). And self-development activities increase the odds ratio of sleep disorders(OR = 1.35, 95% CI: 1.17–1.57). Gardening activities lowered the odds ratio of depression/anxiety disorders(OR = 0.74, 95% CI: 0.59–0.94).

Conclusion

Some of activities outside work were related to sleep disorders and depression/anxiety disorders among Korean wage workers. Our results showed negative health effect of some kinds of activities outside work such as volunteering and self-devlopment compared to other studies that emphasized positive effect of those activities for health.

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Association Between Occupational Physicochemical Exposures and Headache/Eyestrain Symptoms Among Korean Indoor/Outdoor Construction Workers
Sung Won Jung, June-Hee Lee, Kyung-Jae Lee, Hyoung-Ryoul Kim
Safety and Health at Work.2019; 10(4): 437. CrossRef
The association between long working hours and work-related musculoskeletal symptoms of Korean wage workers: data from the fourth Korean working conditions survey (a cross-sectional study)
Jae-Gwang Lee, Guang Hwi Kim, Sung Won Jung, Sang Woo Kim, June-Hee Lee, Kyung-Jae Lee
Annals of Occupational and Environmental Medicine.2018;[Epub] CrossRef

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Case Report

Dermal and neural toxicity caused by acrylamide exposure in two Korean grouting workers: a case report: Heeyun Kim, Sang Gil Lee, Jeongbae Rhie; Ann Occup Environ Med 2017;29:50. Published online October 9, 2017; DOI: https://doi.org/10.1186/s40557-017-0207-7

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Background

Peripheral neuritis caused by acrylamide is well-known, and many Korean grouting workers are frequently exposed to acrylamide in grouting agents that are injected into cracked concrete. We recently encountered two cases of dermal and neural toxicity in Korean grouting workers with exposure to grouting agents that contained a high concentration of acrylamide.

Case presentation

The first case involved a 44-year-old man with 8 years of waterproofing experience. The patient developed peeling skin on both hands while grouting, which progressed to systemic neurological symptoms, such as reduced sensory function and strength. The patient was diagnosed with peripheral neuropathy caused by acrylamide exposure, and fully recovered after conservative treatment and withdrawal of exposure to the grouting agent. The second case involved a 34-year-old man with 10 years of grouting experience. The patient initially experienced weakness in both legs, which progressed to weakness in his arms and uncontrolled phonation. After being hospitalized, he was diagnosed with cerebellar ataxia and peripheral neuropathy caused by acrylamide exposure, and was discharged after conservative treatment. Our follow-up investigation revealed that both workers were recently exposed to grouting agents that contained higher concentrations of acrylamide, compared to the agents that they had previously been using.

Conclusions

Both workers had workplace acrylamide exposure through dermal contact plus inhalation of dust and vapor, which led to the neural toxicity and dermatitis. Therefore, government studies are needed to investigate the current status of workplace acrylamide use, and to protect workers from the hazardous effects of using acrylamide-containing grouting agents.

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Effects of acrylamide on indoor air based on the reactions with O3 and •OH: Mechanism, kinetics, and toxicity evaluation
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Acrylamide induces neurotoxicity in zebrafish (Danio rerio) via NLRP3-mediated pyroptosis
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Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment
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Effect of long-term exposure to acrylamide on endoplasmic reticulum stress and autophagy in rat cerebellum
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Risk of exposure to acrylamide
Milena Bušová, Vladimír Bencko, Katarína Veszelits Laktičová, Ivana Holcátová, Mária Vargová
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Abdulrahman Rashidi, Seyed Mohammad Mahdi Abtahi, Elham Saeedzadeh, Mohammad Esmaeil Akbari
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Learning, memory deficits, and impaired neuronal maturation attributed to acrylamide
Seulah Lee, Hee Ra Park, Joo Yeon Lee, Jung-Hyun Cho, Hye Min Song, Ah Hyun Kim, Wonjong Lee, Yujeong Lee, Seung-Cheol Chang, Hyung Sik Kim, Jaewon Lee
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Research Articles

The relationship between spontaneous abortion and female workers in the semiconductor industry: Heechan Kim, Ho-Jang Kwon, Jeongbae Rhie, Sinye Lim, Yun-Dan Kang, Sang-Yong Eom, Hyungryul Lim, Jun-Pyo Myong, Sangchul Roh; Ann Occup Environ Med 2017;29:49. Published online October 9, 2017; DOI: https://doi.org/10.1186/s40557-017-0204-x

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Background

This study investigated the relationship between job type and the risk for spontaneous abortion to assess the reproductive toxicity of female workers in the semiconductor industry.

Methods

A questionnaire survey was administered to current female workers of two semiconductor manufacturing plants in Korea. We included female workers who became pregnant at least 6 months after the start of their employment with the company. The pregnancy outcomes of 2,242 female workers who experienced 4,037 pregnancies were investigated. Personnel records were used to assign the subjects to one of three groups: fabrication process workers, packaging process workers, and clerical workers. To adjust for within-person correlations between pregnancies, a generalized estimating equation was used. The logistic regression analysis was limited to the first pregnancy after joining the company to satisfy the assumption of independence among pregnancies. Moreover, we stratified the analysis by time period (pregnancy in the years prior to 2008 vs. after 2009) to reflect differences in occupational exposure based on semiconductor production periods.

Results

The risk for spontaneous abortion in female semiconductor workers was not significantly higher for fabrication and packaging process workers than for clerical workers. However, when we stratified by time period, the odds ratio for spontaneous abortion was significantly higher for packaging process workers who became pregnant prior to 2008 when compared with clerical workers (odds ratio: 2.21; 95% confidence interval: 1.01–4.81).

Conclusions

When examining the pregnancies of female semiconductor workers that occurred prior to 2008, packaging process workers showed a significantly higher risk for spontaneous abortions than did clerical workers. The two semiconductor production periods in our study (prior to 2008 vs. after 2009) had different automated processes, chemical exposure levels, and working environments. Thus, the conditions prior to 2008 may have increased the risk for spontaneous abortions in packaging process workers in the semiconductor industry.

Electronic supplementary material

The online version of this article (10.1186/s40557-017-0204-x) contains supplementary material, which is available to authorized users.

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Associations between maternal occupational exposures and pregnancy outcomes among Chinese nurses: a nationwide study
Zhaoqiang Jiang, Junfei Chen, Lingfang Feng, Mingying Jin, Shuang Liu, Lina Wang, Jing Wang, Changyan Yu, Jianhong Zhou, Yan Ye, Liangying Mei, Wenlan Yu, Xing Zhang, Jianlin Lou
Reproductive Health.2023;[Epub] CrossRef
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Kyung-Taek Rim
Toxicology and Environmental Health Sciences.2022; 14(1): 1. CrossRef
Health Status, Health-Related Factors and Work Environment in Korean Semiconductor Workers between 1984–2012: A Qualitative Study and a Cross-Sectional Study
Kyungsik Kim, Ho Kyung Sung, Jieun Jang, Eunyoung E. Suh, Kwan Lee, Sue K. Park
International Journal of Environmental Research and Public Health.2022; 19(10): 6286. CrossRef
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Weitao Liang, Tianyuan Zhu, Na Tan, Guangzhuang Jing, Li'ao Xie, Yuhui Dang, Zhilan Li
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Juha Park, Yeon-Soon Ahn, Min-Gi Kim
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Kyung-Hwa Choi, Hyunjoo Kim, Myoung-Hee Kim, Ho-Jang Kwon
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Sleepiness while driving and shiftwork patterns among Korean bus drivers: Seyoung Lee, Hyoung-Ryoul Kim, Junsu Byun, Taewon Jang; Ann Occup Environ Med 2017;29:48. Published online October 9, 2017; DOI: https://doi.org/10.1186/s40557-017-0203-y

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Background

Sleepiness while driving has been regarded as a major cause of death due to traffic accidents. We compared the degree of sleepiness across five different working time periods (first, morning, post-lunch, afternoon, and last) among Korean bus drivers with different shift types (Daily two shift/Alternating day shift).

Method

We interviewed 332 bus drivers with two shift types (Daily two shift, 128; Alternating day shift, 204). The questionnaire included demographic information (age, alcohol consumption and history of disease), a sleep disorder diagnosed by a doctor, job duration, the number of workdays in the past month, average working hours per workday and week, sleepiness while driving (Karolinska Sleepiness Scale), and sleeping time for both workdays and off-days. We conducted log-binomial regression analyses and produced prevalence ratios (PRs) of severe sleepiness (KSS ≥ 7) while driving with 95% confidence intervals (95% CI) to identify the difference in sleepiness for five working times between both groups.

Results

For the first and morning periods, there were no statistically significant differences in the KSS scores between the two groups. However, from lunch to last driving, drivers with Alternating day shift had a much larger proportion of severe sleepiness than those on Daily two shift. Thirteen (10.2%), 2 (1.6%) and 7 (5.5%) Daily two shift workers reported severe sleepiness in the post-lunch, afternoon and last periods. In contrast, 81 (39.7%), 63 (30.9%) and 64 (31.4%) of Alternating day shift drivers experienced severe sleepiness during the post-lunch, afternoon and last driving periods (p < 0.0001). According to the log-binomial regression analyses, Alternating day shift was associated with severe sleepiness from lunch to last driving. After adjusting for job duration, alcohol consumption and sleeping time on workdays, the PRs were 3.97 (95% CI: 2.29–6.90) post-lunch, 18.26 (95% CI: 4.51–73.89) in the afternoon and 5.71 (95% CI: 2.51–12.99) for the last driving period.

Conclusion

We found that Alternating day shift bus drivers suffered from more sleepiness while driving from lunch to last driving than Daily two shift bus drivers. This difference may be because Alternating day shift drivers had more irregular work schedules and longer working hours per day and week.

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Martin Jankovský, Michal Allman, Zuzana Allmanová, Michal Ferenčík, Ján Merganič, Valéria Messingerová
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The association between cadmium and lead exposure and blood pressure among workers of a smelting industry: a cross-sectional study: Hyun Chan An, Joo Hyun Sung, Jiho Lee, Chang Sun Sim, Sang Hoon Kim, Yangho Kim; Ann Occup Environ Med 2017;29:47. Published online October 4, 2017; DOI: https://doi.org/10.1186/s40557-017-0202-z

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Background

Lead and cadmium are harmful heavy metals that are used for a variety of occupational purposes. Considering their potentially hazardous effects on health, studies on the association between exposure to these two heavy metals and health disorders have been actively conducted. This study aimed to determine the association between blood lead and cadmium levels and blood pressure in workers exposed to lead and cadmium in a smelter.

Methods

Nine hundred and sixty-three male workers who worked in a smelter, and underwent medical examinations at the Ulsan University Hospital between January 1 and December 31, 2014, were selected as participants. Among them, 310 subjects whose data on height, weight, blood pressure, fasting blood glucose, lipid profile, and blood lead and cadmium levels were available and who answered the questionnaire were selected as the final participants. We investigated the drinking habit, smoking status, exercise adequacy, and family history of hypertension of these workers using formal questionnaires. A statistical analysis was conducted using Student’s t-test, analysis of variance, and linear or logistic regression.

Results

The association between blood lead and cadmium levels and blood pressure was analyzed through statistical adjustment of the risk factors of hypertension. Results showed an association between blood cadmium level and blood pressure elevation. However, blood lead level was found to be not correlated with blood pressure elevation.

Conclusions

This study shows the association between blood cadmium level and systolic blood pressure (SBP) and diastolic blood pressure (DBP) elevation.

Trial registration

IRB No. 2017–03-037. Retrospectively Registered 30 March 2017.

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Research

The association between perceived discriminations and well-being in Korean employed workers: the 4th Korean working conditions survey: Hee Sung Lee, Guang Hwi Kim, Sung Won Jung, June-Hee Lee, Kyung-Jae Lee, Joo Ja Kim; Ann Occup Environ Med 2017;29:46. Published online October 2, 2017; DOI: https://doi.org/10.1186/s40557-017-0205-9

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Background

Around the globe, discrimination has emerged as a social issue requiring serious consideration. From the perspective of public health, the impact of discrimination on the health of affected individuals is a subject of great importance. On the other hand, subjective well-being is a key indicator of an individual’s physical, mental, and social health. The present study aims to analyze the relationship between Korean employed workers’ subjective health and their exposure to perceived discrimination.

Methods

The Fourth Korean Working Conditions Survey (KWCS, 2014) was conducted on a representative sample of the economically active population aged 15 years or older, who were either employees or self-employed at the time of interview. After removing inconsistent data, 32,984 employed workers were examined in this study. The data included general and occupational characteristics, perceived discrimination, and well-being. Well-being was measured through the WHO-Five index (1998 version). Multiple logistic regression analysis was used to examine the association between perceived discrimination and well-being.

Result

As a group, employed workers who were exposed to discrimination had a significantly higher likelihood of “poor well-being” than their counterparts who were not exposed to discrimination. More specifically, the workers exposed to age discrimination had an odds ratio(OR) of 1.51 (95% CI: 1.36–1.68), workers exposed to discrimination based on educational attainment had an OR of 1.43 (95% CI: 1.26–1.61), and workers exposed to discrimination based on employment type had an OR of 1.68 (95% CI: 1.48–1.91) with respect to poor well-being.

Furthermore, workers exposed to a greater number of discriminatory incidents were also at a higher risk of “poor well-being” than their counterparts who were exposed to fewer such incidents. More specifically, the workers with three exposures to discrimination had an OR of 2.60 (95% CI: 1.92–3.53), the workers with two such exposures had an OR of 1.69 (95% CI: 1.44–1.99), and the workers with one such exposure had an OR of 1.32 (95% CI: 1.20–1.45).

Conclusion

The present study found that discrimination based on age, educational attainment, or employment type put workers at a higher risk of “poor well-being,” and that the greater the exposure to discrimination, the higher the risk of poor well-being.

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Case Report

A case of generalized argyria presenting with muscle weakness: Inha Jung, Eun-Jeong Joo, Byung seong Suh, Cheol-Bae Ham, Ji-Min Han, You-Gyung Kim, Joon-Sup Yeom, Ju-Yeon Choi, Ji-Hye Park; Ann Occup Environ Med 2017;29:45. Published online October 2, 2017; DOI: https://doi.org/10.1186/s40557-017-0201-0

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Background

Argyria is a rare irreversible cutaneous pigmentation disorder caused by prolonged exposure to silver. Herein, we report a case of generalized argyria that developed after chronic ingestion of soluble silver-nano particles and presented with muscle weakness.

Case presentation

A 74-year-old woman visited our emergency room, complaining of fever and mental deterioration. She was diagnosed with acute pyelonephritis and recovered after antibiotic therapy. At presentation, diffuse slate gray-bluish pigmented patches were noticed on her face and nails. Two months prior to visiting our hospital, she was diagnosed with inflammatory myopathy and given steroid therapy at another hospital. We performed a nerve conduction study that revealed polyneuropathy. In skin biopsies from pigmented areas of the forehead and nose, the histopathologic results showed brown-black granules in basement membranes of sweat gland epithelia, which are diagnostic findings of argyria. We reviewed pathology slides obtained from the left thigh muscles and found markedly degenerated myofibers with disorganization of myofibrils without inflammatory reactions, consistent with unspecified myopathy, rather than inflammatory myopathy. The patient was diagnosed with generalized argyria with polyneuropathy and myopathy and transferred to a rehabilitation institution after being tapered off of steroids.

Conclusions

Clinicians should be aware of clinical manifestations of argyria and consider it in differential diagnosis when they examine patients who present with skin pigmentation and muscle weakness.

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Review

Estimations of the lethal and exposure doses for representative methanol symptoms in humans: Chan-Seok Moon; Ann Occup Environ Med 2017;29:44. Published online October 2, 2017; DOI: https://doi.org/10.1186/s40557-017-0197-5

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Background

The aim of this review was to estimate the lethal and exposure doses of a representative symptom (blindness) of methanol exposure in humans by reviewing data from previous articles.

Methods

Available articles published from 1970 to 2016 that investigated the dose-response relationship for methanol exposure (i.e., the exposure concentration and the biological markers/clinical symptoms) were evaluated; the MEDLINE and RISS (Korean search engine) databases were searched. The available data from these articles were carefully selected to estimate the range and median of a lethal human dose. The regression equation and correlation coefficient (between the exposure level and urinary methanol concentration as a biological exposure marker) were assumed from the previous data.

Results

The lethal human dose of pure methanol was estimated at 15.8–474 g/person as a range and as 56.2 g/person as the median. The dose-response relationship between methanol vapor in ambient air and urinary methanol concentrations was thought to be correlated. An oral intake of 3.16–11.85 g/person of pure methanol could cause blindness. The lethal dose from respiratory intake was reported to be 4000–13,000 mg/l. The initial concentration of optic neuritis and blindness were shown to be 228.5 and 1103 mg/l, respectively, for a 12-h exposure.

Conclusion

The concentration of biological exposure indices and clinical symptoms for methanol exposure might have a dose-response relationship according to previous articles. Even a low dose of pure methanol through oral or respiratory exposure might be lethal or result in blindness as a clinical symptom.

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Research Articles

Association between supervisors’ behavior and wage workers’ job stress in Korea: analysis of the fourth Korean working conditions survey: Shin Uk Kang, Byeong Jin Ye, ByoungGwon Kim, Jung Il Kim, Jung Woo Kim; Ann Occup Environ Med 2017;29:43. Published online October 11, 2017; DOI: https://doi.org/10.1186/s40557-017-0199-3

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Background

In modern society, many workers are stressed. Supervisors’ support or behavior can affect the emotional or psychological part of the worker. The purpose of this study is to investigate the effect of supervisor’s behavior on worker’s stress.

Methods

The study included 19,272 subjects following the assignment of weighted values to workers other than soldiers using data from the Fourth Korean Working Condition Survey. Supervisors’ behavior was measured using 5 items: “supervisor feedback regarding work,” “respectful attitude,” “good conflict-resolution ability,” “good work-related planning and organizational ability,” and the encouragement of participation in important decision making. Job stress was measured using 1 item: “I experience stress at work.” Multiple logistic regression analysis was performed to examine the effects of supervisors’ behavioral, general, occupational, and psychosocial characteristics on job stress in workers. Organizational characteristics associated with supervisors’ behavior were also analyzed.

Results

The results showed that supervisors’ provision of feedback regarding work increased workers’ job stress (OR = 1.329, 95% CI = 1.203 ~ 1.468). When a supervisor respect workers (OR = 0.812, 95% CI = 0.722 ~ 0.913) or good at planning and organizing works (OR = 0.816, 95% CI: 0.732 ~ 0.910), workers’ job stress decreased. In particular, the two types of supervisor behaviors, other than feedback regarding work, were high in private-sector organizations employing less than 300 employees.

Conclusion

Supervisors’ behavior influenced job stress levels in workers. Therefore, it is necessary to increase education regarding the effects of supervisors’ behavior on job stress, which should initially be provided in private-sector organizations with up to 300 employees.

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Job security in the apparel industry in Sri Lanka
Wasantha Rajapakshe, T.G.S.D. Chandrasiri
Work Organisation, Labour & Globalisation.2023;[Epub] CrossRef
Association between night work and dyslipidemia in South Korean men and women: a cross-sectional study
Jae Hong Joo, Doo Woong Lee, Dong-Woo Choi, Eun-Cheol Park
Lipids in Health and Disease.2019;[Epub] CrossRef

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Relationship between dietary factors and bisphenol a exposure: the second Korean National Environmental Health Survey (KoNEHS 2012–2014): Jin-Soo Park, Seyoung Kim, Minkyu Park, Yeji Kim, Hyeeun Lee, Hyunrim Choi, Sinye Lim; Ann Occup Environ Med 2017;29:42. Published online October 18, 2017; DOI: https://doi.org/10.1186/s40557-017-0200-1

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Background

This study was aimed at finding out the exposure level of bisphenol A (BPA), a well-known endocrine disruptor, in relation to dietary factors using a data representing the Korean general population.

Methods

This study was performed on 5402 adults aged 19 years and older based on the Second Korean National Environmental Health Survey (KoNEHS 2012–2014). The data analyzed urinary BPA concentration in relation to socio-demographic variables, health behavior-related variables, and dietary factor-related variables. Odds ratio (OR) was calculated through a logistic regression analysis after dividing the participants into high BPA exposure group and low BPA exposure group based on the top 75 percentile concentration. The logistic regression analysis was carried out considering the appropriate sample weight, stratification, and clustering of the second KoNEHS sample design.

Results

The group drinking bottled water at home and the group using zip-top bags/plastic bags showed significantly higher urinary BPA concentration in female. OR tends to increase as the intake frequency of frozen food increased and OR of frozen food consumption of more than once a week was 1.48 (95% confidence interval (CI) 1.02–2.24) for male and the group drinking bottled water showed significantly higher OR of 1.45 (95% CI 1.06–2.17) after adjusting the related factors for female.

Conclusions

BPA levels were high in female using bottled water and in male consuming frozen food, and therefore bottled water and frozen food need to be avoided to reduce BPA levels.

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Nicole E. Sieck, Meg Bruening, Irene van Woerden, Corrie Whisner, Devon C. Payne-Sturges
Environmental Health Perspectives.2024;[Epub] CrossRef
Invited Perspective: Why Systematic Reviews, Scoping Reviews, and Evidence-to-Decision Frameworks Are Critical for Transparent, Consistent, Equitable, and Science-Based Decision-Making in Environmental Health
Nicholas Chartres, Rashmi Joglekar
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Urinary concentrations of environmental phenol among pregnant women in the Japan Environment and Children’s Study
Neeranuch Suwannarin, Yukiko Nishihama, Tomohiko Isobe, Shoji F. Nakayama
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Kisspeptin as potential biomarker of environmental chemical mixture effect on reproductive hormone profile: A pilot study in adolescent males
Andrea Rodriguez-Carrillo, Sylvie Remy, Shereen Cynthia D'Cruz, Elena Salamanca-Fernandez, Fernando Gil, Pablo Olmedo, Vicente Mustieles, Fernando Vela-Soria, Kirsten Baken, Nicolás Olea, Fátima Smagulova, Mariana F. Fernandez, Carmen Freire
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The association of bisphenol A exposure with premature ovarian insufficiency: a case–control study
C. Li, M. Cao, T. Qi, X. Ye, L. Ma, W. Pan, J. Luo, P. Chen, J. Liu, J. Zhou
Climacteric.2021; 24(1): 95. CrossRef
Risk Assessment of Cosmetics Using Triclosan on Future Generation’s Germ Cell Maturation via Lactating Mother Rats
Tapas K. Mandal, Nargish Parvin, Sang Woo Joo, Partha Roy
International Journal of Environmental Research and Public Health.2020; 17(4): 1143. CrossRef
Quantification of bisphenol A in urine samples from children studying in public schools from the Brazilian Capital
Hadassa S.R.P. Moura, Priscilla R.S. Rocha, Angélica A. Amato, Fernando F. Sodré
Microchemical Journal.2020; 152: 104347. CrossRef
Relationship between seafood consumption and bisphenol A exposure: the Second Korean National Environmental Health Survey (KoNEHS 2012–2014)
Yeji Kim, Minkyu Park, Do Jin Nam, Eun Hye Yang, Jae-Hong Ryoo
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Assessing Endogenous and Exogenous Hormone Exposures and Breast Development in a Migrant Study of Bangladeshi and British Girls
Renata E. Howland, Nicole C. Deziel, Gillian R. Bentley, Mark Booth, Osul A. Choudhury, Jonathan N. Hofmann, Robert N. Hoover, Hormuzd A. Katki, Britton Trabert, Stephen D. Fox, Rebecca Troisi, Lauren C. Houghton
International Journal of Environmental Research and Public Health.2020; 17(4): 1185. CrossRef
RETRACTED: Exposure to environmental pollutants and a marker of early kidney injury in the general population: Results of a nationally representative cross-sectional study based on the Korean National Environmental Health Survey (KoNEHS) 2012–2014
Sinye Lim, Jin-Ha Yoon
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Female non-smokers’ environmental tobacco smoking exposure by public transportation mode
Seyoung Kim, Jin-Soo Park, Minkyu Park, Yeji Kim, Sinye Lim, Hye-Eun Lee
Annals of Occupational and Environmental Medicine.2018;[Epub] CrossRef

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Characteristics of occupational musculoskeletal disorders of five sectors in service industry between 2004 and 2013: Hyun-Woo Choi, Young-Ki Kim, Dong-Mug Kang, Jong-Eun Kim, Bo-Young Jang; Ann Occup Environ Med 2017;29:41. Published online September 19, 2017; DOI: https://doi.org/10.1186/s40557-017-0198-4

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Background

‘Work related musculoskeletal disorders (WRMSDs)’ have been mostly reported in the manufacturing industry but recently the occurrence of industrial injuries has been constantly increasing in the service industry. This research is going to analyze the data about workers’ compensation for WRMSDs in five different service sectors and identify characteristics of occupations with the highest approved occupations.

Methods

According to the data released from the Korea Worker’s Compensation & Welfare Service, the overview of 12,730 cases of workers’ compensation for WRMSDs in five service sectors from 2004 to 2013 is going to be analyzed and the source data is going to be classified by the Korean Standard Classification of Occupations to select the top five occupations that have the highest number of approval.

Results

After selecting each five occupations from the service sector that have work related musculoskeletal disorders, the result showed that the occupation with the highest number of approval in the health and social care sector were the early childhood educators, cooks in the school canteens in education services sector, garbage collectors in the sanitation and similar services sector, deliverymen in wholesale and retail, consumer goods repair and building cleaners in general management businesses such as those in building maintenance. The major event observed in the top five occupations was the overexertion and reaction as a cause of WRMSDs. The day when the WRMSDs mostly occurred was on Monday and the most likely time was 10 am. The median days away from work and lost working days are 29–90 days and 0–50 days respectively. The difference in each occupation was observed in year of service, age, and gender.

Conclusions

83.21% of the approved cases of workers’ compensation for WRMSDs occurred in the top 25 occupations in all of the five service sectors, which meant that the approval of workers’ compensation is concentrated in specific occupations. This research is going to suggest preventive measures for work related musculoskeletal disorders in the service industry and to help prioritize the preventive measures.

Trial registration

Not applicable.

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Katarzyna Kliniec, Mateusz Mendowski, Patrycja Zuziak, Mateusz Sobieski, Urszula Grata-Borkowska
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Magnitude and possible risk factors of musculoskeletal disorders among street cleaners and solid waste workers: a cross-sectional study
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Jia-Hua Lin, Wonil Lee, Caroline K. Smith, Nanette L. Yragui, Michael Foley, Gwanseob Shin
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Ana Clara Bonini-Rocha, Rayssa Alves Costa de Oliveira, Morteza Bashash, Giullia do Couto Machado, Vanessa Resende Nogueira Cruvinel
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Sharon R. Flinn, Glenn Goodman
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Mehmet PEKDEMİR, Neşe AŞICI, Abdülkadir AYDIN, Elif KÖSE, Hasan EKERBİÇER
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Francis J. Emmatty, Vinay V. Panicker
International Journal of Industrial Ergonomics.2019; 72: 158. CrossRef

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Psychological effects of a disastrous hydrogen fluoride spillage on the local community: Seung-Hyun Yoo, Seong-Yong Yoon, Kuck-Hyun Woo, Jin-Seok Kim, Seong-Yong Cho, Sung-Soo Lee, Hyun-Sul Lim, Yeon-Soon Ahn, Won-Ho Yang; Ann Occup Environ Med 2017;29:40. Published online September 11, 2017; DOI: https://doi.org/10.1186/s40557-017-0196-6

Abstract PDF PubReader ePub

Background

On September 27, 2012, at 3:43 pm, a hydrogen fluoride spill occurred in a manufacturing plant located at the 4th complex of the Gumi National Industrial Complex in Gumi City, South Korea. The present study aimed to evaluate the psychological effects of the hydrogen fluoride spill on the members of the community and to investigate their relationships with physical symptoms and changes in psychological effects occurring as time passed after the accident.

Methods

The 1st phase involved a survey of 1359 individuals that was conducted 1 month after the spill, and the 2nd phase involved a survey of 711 individuals that was conducted 7 months after the accident. The questionnaires included items for assessing demographic characteristics, hydrogen fluoride exposure level, physical symptoms, and psychological status. Physical symptoms were assessed to determine the persistence of irritations. Psychological status was assessed to investigate the impact of event level using the Impact of Event Scale – Revised Korean version (IES-R-K), and the anxiety level was assessed using the Beck Anxiety Inventory (BAI).

Results

As the hydrogen fluoride exposure level increased, the impact of event and anxiety levels increased significantly both 1 and 7 months after the accident (p < 0.05). The mean score of the impact of event levels decreased significantly from 33.33 ± 14.64 at 1 month after the accident to 28.68 ± 11.80 at 7 months after the accident (p < 0.05). The mean score of the anxiety levels increased significantly from 5.16 ± 6.59 at 1 month after the accident to 6.79 ± 8.41 at 7 months after the accident (p < 0.05). The risk of persistent physical symptoms at 7 months after the accident was significantly higher in females. The risk of persistent physical symptoms also increased significantly, with increasing age, hydrogen fluoride exposure, and impact of event levels (p < 0.05).

Conclusions

The present study found that the impact of event level and anxiety level increased with increasing hydrogen fluoride exposure. Anxiety levels persisted even after time passed. The risk of persistent physical symptoms at 7 months after the accident was higher in females, and it increased with increasing age, hydrogen fluoride exposure level, and impact of event levels.

Citations

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The influence of chemical and thermal modifications of ordered mesoporous carbon on the melting processes of water confined in pores
A. Bosacka, M. Zienkiewicz-Strzalka, A. Derylo-Marczewska, M. Sliwinska-Bartkowiak, A. Sterczynska, D. Sternik, K. Rotnicki
Microporous and Mesoporous Materials.2023; 351: 112477. CrossRef
Comparative Analysis of Hydrogen Fluoride-Exposed Patients Based on Major Burn Criteria After the 2012 Gumi City Chemical Leak Disaster
Heejun Shin, Se Kwang Oh, Han You Lee, Heajin Chung, Seong Yong Yoon, Sung Yong Choi
Journal of Burn Care & Research.2022; 43(4): 834. CrossRef
Classification of Human Failure in Chemical Plants: Case Study of Various Types of Chemical Accidents in South Korea from 2010 to 2017
Seungho Jung, Seungkyoo Pak, Kwanwoo Lee, Chankyu Kang
International Journal of Environmental Research and Public Health.2021; 18(21): 11216. CrossRef
Chemical pneumonitis by prolonged hydrogen fluoride inhalation
Young Jin Lee, In Beom Jeong
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Lessons learned from reviewing a hospital’s disaster response to the hydrofluoric acid leak in Gumi city in 2012
Heejun Shin, Se Kwang Oh, Han You Lee, Heajin Chung, Seong Yong Yoon, Sung Yong Choi, Jae Hyuk Kim
BMC Emergency Medicine.2021;[Epub] CrossRef
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Seungkyoo Pak, Chankyu Kang
Process Safety and Environmental Protection.2021; 149: 325. CrossRef
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Song-Eun Lee, Nabin Lee, Seonyoung Yoo, Dowon Park, Kyoungsun Jeon, Tae-Yeon Hwang, Jung Hyun Lee
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Association between shift work and microalbuminuria: data from KNHANES(2012–2014): Eun Kye Kang, Gu Hyeok Kang, Jun Young Uhm, Young Gon Choi, Soo Young Kim, Seong Sil Chang, Hyoung-Ryoul Kim; Ann Occup Environ Med 2017;29:37. Published online August 21, 2017; DOI: https://doi.org/10.1186/s40557-017-0194-8

Abstract PDF PubReader ePub

Background

Shift work disturbs workers’ biological clocks and this condition can cause various health problems including cardiovascular disease. The elevated albuminuria level has been significantly associated with the risk of the cardiovascular disease even within a normal reference range. Therefore, this study aimed to investigate the association between shift work and microalbuminuria.

Methods

Workers aged over 20 years from the fifth and sixth Korea National Health and Nutrition Examination Survey(KNHANES 2012–2014; n = 3000) were included in this analysis. The multiple logistic regression analysis was performed to determine the association between shift work and microalbuminuria stratified by gender.

Results

The prevalence of microalbuminuria in male subjects was higher among day workers, but the difference was not significant. However, the prevalence of microalbuminuria among females was higher in shift workers with statistical significance. For female, the Odds ratio of microalbuminuria in shift workers was significantly higher with 1.86 (95% CI 1.02–3.39) compared with day workers. After dividing into 5 subgroups of the shift work pattern, the odds ratio of microalbuminuria for fixed night shift was significantly higher at 4.68 (95% CI 1.29–17.00) compared with day workers.

Conclusions

This study showed that shift work was associated with microalbuminuria in female workers. Especially we found out the association between fixed night shift and microalbuminuria in female workers.

Citations

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Effect of night shift work on the reduction of glomerular filtration rate using data from Korea Medical Institute (2016-2020)
Beom Seok Ko, Sang Yop Shin, Ji Eun Hong, Sungbeom Kim, Jihhyeon Yi, Jeongbae Rhie
Annals of Occupational and Environmental Medicine.2023;[Epub] CrossRef
Cardiometabolic traits mediate the association of past shift work and chronic kidney disease: the Dongfeng–Tongji cohort study
Xu Han, Fei Wang, Jing Wang, Meian He
International Archives of Occupational and Environmental Health.2022; 95(7): 1501. CrossRef
Rotating Night Shift Work, Exposure to Light at Night, and Glomerular Filtration Rate: Baseline Results from a Chinese Occupational Cohort
Shengkui Zhang, Yongbin Wang, Ying Zhu, Xiaoming Li, Yang Song, Juxiang Yuan
International Journal of Environmental Research and Public Health.2020; 17(23): 9035. CrossRef

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Insomnia and hearing impairment among occupational noise exposed male workers: Hyeong-Min Lim, WonYang Kang, Won-Ju Park, Keun-Ho Jang, Ji-Sung Ann, Jai-Dong Moon; Ann Occup Environ Med 2017;29:36. Published online August 15, 2017; DOI: https://doi.org/10.1186/s40557-017-0195-7

Abstract PDF PubReader ePub

Background

The aim of this study was to investigate the association between insomnia and hearing impairment among workers exposed to occupational noise.

Methods

This study included 809 male workers exposed to occupational noise. The participants underwent audiometric testing, and their insomnia was examined based on the Insomnia Severity Index test. Hearing impairment was defined as hearing threshold >25 dB hearing level in the range of 1–4 kHz.

Results

According to analysis of covariance, it was observed that pure tone audiometry thresholds at 1–2 kHz in the right ear and at 1 kHz in the left ear were significantly higher among workers with insomnia compared to those with no insomnia. Multiple logistic regression analysis of insomnia for hearing impairments was performed, which showed the odds ratio was 1.806 (95% confidence intervals: 1.022–3.188, p = 0.042) after adjustment for age, working period, noise level, snoring, use of protection devices, diabetes mellitus, hypertension, smoking, alcohol consumption, regular exercise, waist circumference, total cholesterol, triglyceride and high density lipoprotein cholesterol.

Conclusion

Insomnia could be associated with hearing impairment in workers who are exposed to occupational noise. Additionally, insomnia may be associated with decreased hearing at low frequencies. Especially, more efforts are required to improve the quality of sleep for workers who are exposed to loud occupational noise. Further well- designed prospective studies are needed to clarify the relationship between insomnia and hearing impairment.

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Kening Jiang, Adam P. Spira, Nicholas S. Reed, Frank R. Lin, Jennifer A. Deal
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The sound of safety: exploring the determinants of prevention intention in noisy industrial workplaces
Hyeon Jo, Eun-Mi Baek
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Kening Jiang, Adam P. Spira, Rebecca F. Gottesman, Kelsie M. Full, Frank R. Lin, Pamela L. Lutsey, Emmanuel E. Garcia Morales, Naresh M. Punjabi, Nicholas S. Reed, A. Richey Sharrett, Jennifer A. Deal
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Humberto Yévenes-Briones, Francisco Félix Caballero, Daniela B. Estrada-deLeón, Ellen A. Struijk, Arthur Eumann Mesas, José R. Banegas, Fernando Rodríguez-Artalejo, Esther Lopez-García
Ear & Hearing.2023;[Epub] CrossRef
Sleep quality and sleep-related issues in industrial workers: a global meta-analysis
Sohrab Amiri
International Journal of Occupational Safety and Ergonomics.2023; 29(1): 154. CrossRef
Obstructive sleep apnea risk and hearing impairment among occupational noise-exposed male workers
Seunghyeon Cho, Won-Ju Park, Ji-Sung Ahn, Dae-Young Lim, Su-Hwan Kim, Jai-Dong Moon
Archives of Environmental & Occupational Health.2023; 78(2): 108. CrossRef
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Xiaorui Cui, Zixuan Lu, Xinyue Guo, Neng Dai, Chen Huang, Yahang Liu, Ruilang Lin, Yongfu Yu, Guoyou Qin, Jiaohua Chen
Frontiers in Public Health.2023;[Epub] CrossRef
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E Wu, Juntao Ni, Zhaohui Zhu, Hongquan Xu, Jun Ci, Lin Tao, Tian Xie
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Kening Jiang, Adam P Spira, Nicholas S Reed, Frank R Lin, Jennifer A Deal, Lewis Lipsitz
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Cha Dong Yeo, Sang Woo Yeom, Yeon Seok You, Jong Seung Kim, Eun Jung Lee
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Nahum M. Gabinet, Hassan Shama, Boris A. Portnov
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Andrew J MacGregor, Antony R Joseph, Rachel R Markwald, Amber L Dougherty
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Thi Phuong Le, Ya-Ling Tzeng, Chih-Hsin Muo, Hua Ting, Fung-Chang Sung, Shin-Da Lee, Yu-Kuei Teng, Pilar Serra-Añó
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American Journal of Audiology.2019; 28(4): 1015. CrossRef

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What causes the experience of discrimination in non-regular workers?: Seong-Hoon Kang, Jin-Ho Song, Tae Hwan Koh, Do Myung Paek, Jong-Tae Park, HoSun Chun; Ann Occup Environ Med 2017;29:35. Published online August 15, 2017; DOI: https://doi.org/10.1186/s40557-017-0192-x

Abstract PDF PubReader ePub

Background

Discrimination based on type of employment against non-regular workers is still a social issue. However, there are few studies on job factors that affect the discrimination experience in each type of employment or the association between discrimination and health impact indicators. This study examined occupational health characteristics according to discrimination experience and relating factors that affect discrimination experience.

Methods

This study used the 4th Korean Working Conditions Survey (2014) provided by the Korea Occupational Safety and Health Agency. Among the 50,000 workers, 7731 non-regular wage workers were selected as study population. To examine differences in discrimination experience, we used a t-test on occupational risk factors, occupational stress, occupational characteristics, health impact indicators. To identify the factors that affected discrimination experience, we performed binomial logistic regression analysis.

Results

The discrimination experience rate was significantly higher in male, aged less than 40 years old, above high school graduate than middle school graduate, higher wage level, shorter employment period and larger company’s scale. As factors related to discrimination experience, they experienced discrimination more as occupational stress was higher and when they were temporary or daily workers rather than permanent workers, work patterns were not consistent, and the support of boss was low. It showed that physical, musculoskeletal, and mental occupational risk scores and subjective job instability were higher and work environment satisfaction was lower in discrimination experienced group.

Conclusions

The present study showed that the demographic and occupational factors were complexly related to discrimination experience in non-regular workers. The experience of discrimination had increased when occupational stress was higher, they were temporary or daily workers rather than permanent workers, work patterns were not consistent, and their boss’ support was low. Improving various relating factors, (e.g. occupational stresses, employment status and occupational characteristics), this would ultimately expect to improve non-regular workers’ discrimination.

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‘You are less credible in life, less reliable… people don’t want to give you a chance’ - a qualitative study on the experience of inferiority among non-standard workers in Belgium
Kim Bosmans, Christophe Vanroelen
Labour and Industry.2024; : 1. CrossRef
Differences in Metabolic Syndrome Prevalence by Employment Type and Sex
Duk Youn Cho, Jung-Wan Koo
International Journal of Environmental Research and Public Health.2018; 15(9): 1798. CrossRef

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The relationship between emotional labor status and workplace violence among toll collectors: Yosub Joo, Jeongbae Rhie; Ann Occup Environ Med 2017;29:34. Published online August 10, 2017; DOI: https://doi.org/10.1186/s40557-017-0193-9

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Background

This study aimed to identify the emotional labor and workplace violence status among toll collectors by assessing and comparing the same with that in workers in other service occupation. It also aimed to analyze the relationship between emotional labor and workplace violence.

Methods

This study examined emotional labor and workplace violence status in 264 female toll collectors from August 20 to September 4, 2015. The emotional labor was assessed using the Korean Emotional Labor Scale (K-ELS), and a questionnaire was used to examine the presence or absence, and type and frequency of workplace violence experienced by the subjects. A linear regression analysis was also performed to analyze the relationship between workplace violence and emotional labor.

Results

The scores on “emotional demanding and regulation (p < 0.001),” “overload and conflict in customer service (p = 0.005),” “emotional disharmony and hurt (p < 0.001),” and “organizational surveillance and monitoring (p < 0.001)” among the sub-categories of emotional labor were significantly high and indicated “at-risk” levels of emotional labor in those who experienced workplace violence, whereas they were “normal” of emotional labor in those who did not. Even after being adjusted in the linear regression analysis, the emotional labor scores for the above 4 sub-categories were still significantly high in those who experienced workplace violence. On comparing the present scores with 13 other service occupations, it was found that toll collectors had the highest level in “emotional disharmony and hurt,” “organizational surveillance and monitoring,” and “organizational supportive and protective system”.

Conclusions

This study found that the toll collectors engaged in a high level of emotional labor. Additionally, there was a significant relationship between emotional labor and the experience of workplace violence among the toll collectors.

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Case Report

A case of azoospermia in a non-destructive testing worker exposed to radiation: Jaechan Park, Sanggil Lee, Chulyong Park, Huisu Eom; Ann Occup Environ Med 2017;29:33. Published online August 10, 2017; DOI: https://doi.org/10.1186/s40557-017-0190-z

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Background

Interest in radiation-related health problems has been growing with the increase in the number of workers in radiation-related jobs. Although an occupational level of radiation exposure would not likely cause azoospermia, several studies have reported the relation between radiation exposure and azoospermia after accidental or therapeutic radiation exposure. We describe a case of azoospermia in a non-destructive testing (NDT) worker exposed to radiation and discuss the problems of the related monitoring system.

Case presentation

A 39-year-old man who was childless after 8 years of marriage was diagnosed with azoospermia through medical evaluations, including testicular biopsy. He did not have any abnormal findings on biochemical evaluations, other risk factors, or evidence of congenital azoospermia. He had been working in an NDT facility from 2005 to 2013, attaching and arranging gamma-ray films on the structures and inner spaces of ships. The patient’s thermoluminescent dosimeter (TLD) badge recorded an exposure level of 0.01781 Gy for 80 months, whereas results of his florescence in situ hybridization (FISH) translocation assay showed an exposure level of up to 1.926 Gy of cumulative radiation, which was sufficient to cause azoospermia. Thus, we concluded that his azoospermia was caused by occupational radiation exposure.

Conclusion

The difference between the exposure dose records measured through TLD badge and the actual exposure dose implies that the monitor used by the NDT worker did not work properly, and such a difference could threaten the health and safety of workers. Thus, to protect the safety and health of NDT workers, education of workers and strengthening of law enforcement are required to ensure that regulations are strictly followed, and if necessary, random sampling of NDT workers using a cytogenetic dosimeter, such as FISH, should be considered.

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Working conditions and values of average annual effective doses for nondestructive testing operators in the Russian Federation and abroad
S. Yu. Bazhin, E. N. Shleenkova, V. Yu. Bogatyreva
Radiatsionnaya Gygiena = Radiation Hygiene.2023; 16(3): 118. CrossRef
Assessment of working environment and personal dosimeter-wearing compliance of industrial radiographers based on chromosome aberration frequencies
Younghyun Lee, Songwon Seo, Young Woo Jin, Seongjae Jang
Journal of Radiological Protection.2020; 40(1): 151. CrossRef
Reproductive toxic agents in work environments and related cases in Korea
Chulyong Park
Yeungnam University Journal of Medicine.2020; 37(1): 22. CrossRef
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C. Herate, L. Sabatier
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Acute radiation syndrome in a non-destructive testing worker: a case report
Ji-Sung Ahn, Jai-Dong Moon, Wonyang Kang, Hyeong-Min Lim, Seunghyeon Cho, Dae-Young Lim, Won-Ju Park
Annals of Occupational and Environmental Medicine.2018;[Epub] CrossRef

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Research Articles

Hepatitis B vaccination coverage and the determinants of vaccination among health care workers in selected health facilities in Lusaka district, Zambia: an exploratory study: Namwaka Mungandi, Mpundu Makasa, Patrick Musonda; Ann Occup Environ Med 2017;29:32. Published online August 10, 2017; DOI: https://doi.org/10.1186/s40557-017-0191-y

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Background

Hepatitis B is a viral infection of the liver and causes both acute and chronic disease. It is transmitted through contact with an infected person’s bodily fluids. It is an occupational hazard for healthcare workers and can be prevented by the administration of a vaccine. It is recommended that healthcare workers be vaccinated against vaccine preventable diseases including hepatitis B. The study objective was to determine the prevalence and determinants of hepatitis B vaccination among healthcare workers in selected health facilities in Lusaka.

Methods

The study took place in seven health facilities across Lusaka district in Zambia. A total sample size of 331 healthcare workers was selected of which; 90 were nurses, 88 were doctors, 86 were laboratory personnel and 67 were general workers. A self-administered structured questionnaire was given to a total of 331 healthcare workers. Investigator led stepwise approach was used to select the best predictor variables in a multiple logistic regression model and all analyses were performed using STATA software, version 12.1 SE (Stata Corporation, College Station, TX, USA).

Results

Only 64(19.3%) of the healthcare workers were vaccinated against hepatitis B, with 35 (54.7%) of these being fully vaccinated and 29 (45.3%) partially vaccinated. Analysis showed that; age of the healthcare worker, sharp injuries per year and training in infection control were the variables that were statistically significant in predicting a healthcare worker’s vaccination status.

Conclusion

It is reassuring to learn that healthcare workers have knowledge regarding hepatitis B and the vaccine and are willing to be vaccinated against it. Health institutions should bear the cost for vaccinating staff and efforts should be made for appropriate health education regarding hepatitis B infection and its prevention. Establishment of policies on compulsory hepatitis B vaccination for healthcare workers in Zambia is recommended.

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Hepatitis B in Healthcare Personnel: An Update on the Global Landscape
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John Bosco Alege, Godfrey Gulom, Alphonse Ochom, Viola Emmanuel Kaku, Masaru Shimada
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Nefsu Awoke, Henok Mulgeta, Tsegaye Lolaso, Tiwabwork Tekalign, Serawit Samuel, Mohammed Suleiman Obsa, Robera Olana, Wan-Long Chuang
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E N Kisangau, A Awour, B Juma, D Odhiambo, T Muasya, S N Kiio, R Too, S A Lowther
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Venerando Rapisarda, Giuseppe Nunnari, Paola Senia, Francesca Vella, Ermanno Vitale, Paolo Murabito, Monica Salerno, Caterina Ledda
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Mohammed Akibu, Sodere Nurgi, Mesfin Tadese, Wendwesen Dibekulu Tsega
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Association of arsenobetaine with beta-cell function assessed by homeostasis model assessment (HOMA) in nondiabetic Koreans: data from the fourth Korea National Health and Nutrition Examination Survey (KNHANES) 2008-2009: Kiook Baek, Namhoon Lee, Insung Chung; Ann Occup Environ Med 2017;29:31. Published online July 10, 2017; DOI: https://doi.org/10.1186/s40557-017-0181-0

Abstract PDF Supplementary Material PubReader ePub

Background

Arsenic is known as an endocrine disruptor that people are exposed to through various sources such as drinking water and indigestion of marine products. Although some epidemiological and animal studies have reported a correlation between arsenic exposure and diabetes development, there are limited studies regarding the toxic effects of organic arsenic including arsenobetaine on the human body. Here, we analyzed the association between urine arsenobetaine and the homeostasis model assessment of β-cell function (HOMA-β), which is an index for predicting diabetes development and reflecting the function of pancreatic β-cells.

Methods

In the fourth Korea National Health and Nutrition Examination Survey (KNHANES), health and nutrition surveys and screening tests were performed. Of the total survey population, people with confirmed values for urine total arsenic and arsenobetaine were included, and known diabetic patients were excluded. A total 369 participants were finally included in the study. We collected surveys on health, height, body weight, body mass index, blood mercury level, fasting glucose level, and serum insulin level and calculated HOMA index. Owing to sexual discrepancy, we performed sexually stratified analysis.

Results

Urine total arsenic and total arsenic minus arsenobetaine was not associated with HOMA-IR and HOMA-β in univariate analysis or in sexually stratified analysis. However, urine arsenobetaine showed a statistically significant relationship with HOMA-β in univariate analysis, and only male participants showed a significant correlation in sexually stratified analysis. In the analysis adjusted for age, BMI, smoking, alcohol drinking, physical activity and blood mercury, the HOMA-β value in the group below the 25th percentile of arsenobetaine was significantly higher than the group between 50 and 75th percentile, while no difference was shown for HOMA-IR. In sexually stratified analysis, The value of HOMA-β was significantly higher in male participants with below the 25th percentile urine arsenobetaine than the group between 25 and 50th and between 50 and 75th, while no difference was shown for HOMA-IR. However, female participants did not demonstrate a relationship between HOMA–IR, HOMA-β and urine arsenobetaine.

Conclusion

This study revealed the association between urine arsenobetaine and pancreatic β-cell function assessed by HOMA-β in the normal population (without diabetes), especially in males, despite adjusting for factors affecting pancreatic β-cell function and diabetes.

Electronic supplementary material

The online version of this article (doi:10.1186/s40557-017-0181-0) contains supplementary material, which is available to authorized users.

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Chenlu Fan, Zaihong Zhan, Xin Zhang, Qun Lou, Ning Guo, Mengyao Su, Yue Gao, Ming Qin, Liaowei Wu, Wei Huang, Meichen Zhang, Fanshuo Yin, Yanhui Wu, Jingbo Pi, Yuanyuan Xu, Yanmei Yang, Yanhui Gao
Archives of Toxicology.2022; 96(6): 1673. CrossRef
Arsenic exposure during pregnancy and postpartum maternal glucose tolerance: evidence from Bangladesh
Abby F. Fleisch, Sudipta Kumer Mukherjee, Subrata K. Biswas, John F. Obrycki, Sheikh Muhammad Ekramullah, D. M. Arman, Joynul Islam, David C. Christiani, Maitreyi Mazumdar
Environmental Health.2022;[Epub] CrossRef
Maternal and childhood exposure to inorganic arsenic and airway allergy – A 15-Year birth cohort follow-up study
Tsung-Lin Tsai, Wei-Te Lei, Chin-Chi Kuo, Hai-Lun Sun, Pen-Hua Su, Shu-Li Wang
Environment International.2021; 146: 106243. CrossRef
Joint effect of urinary arsenic species and serum one-carbon metabolism nutrients on gestational diabetes mellitus: A cross-sectional study of Chinese pregnant women
Qiang Zhang, Xumei Zhang, Shuying Li, Huihuan Liu, Liangpo Liu, Qingyu Huang, Yaxing Hou, Xiaoshan Liang, Bo Cui, Ming Zhang, Liting Xia, Liwen Zhang, Chen Li, Jing Li, Guifan Sun, Naijun Tang
Environment International.2021; 156: 106741. CrossRef
Insulin resistance and pancreatic β cell dysfunction are associated with thyroid hormone functions: A cross-sectional hospital-based study in Turkey
Evin Kocatürk, Ezgi Kar, Zeynep Küskü Kiraz, Özkan Alataş
Diabetes & Metabolic Syndrome: Clinical Research & Reviews.2020; 14(6): 2147. CrossRef
Endocrine disruption and obesity: A current review on environmental obesogens
Radhika Gupta, Prashant Kumar, Nighat Fahmi, Bhaskar Garg, Sriparna Dutta, Shilpee Sachar, Avtar S. Matharu, Karani S. Vimaleswaran
Current Research in Green and Sustainable Chemistry.2020; 3: 100009. CrossRef
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Tania Ruíz-Vera, Ángeles C. Ochoa-Martínez, Sergio Zarazúa, Leticia Carrizales-Yáñez, Iván N. Pérez-Maldonado
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Tahereh Farkhondeh, Saeed Samarghandian, Mohsen Azimi‐Nezhad
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Shadassa Ourshalimian, Abu Mohd Naser, Mahbubur Rahman, Solaiman Doza, Jennifer Stowell, K.M. Venkat Narayan, Mohammad Shamsudduha, Matthew O. Gribble
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Factors affecting heat-related diseases in outdoor workers exposed to extreme heat: Jungsun Park, Yangho Kim, Inbo Oh; Ann Occup Environ Med 2017;29:30. Published online June 29, 2017; DOI: https://doi.org/10.1186/s40557-017-0183-y

Abstract PDF PubReader ePub

Background

The objectives of the present study are to: (i) evaluate the effect of environmental and metabolic heat on heat-related illnesses in outdoor workers; and (ii) evaluate the effect of personal factors, including heat acclimation, on the risk of heat-related illnesses in outdoor workers.

Methods

We identified 47 cases of illnesses from exposure to environmental heat in outdoor workers in Korea from 2010 to 2014, based on review of workers’ compensation data. We also obtained the information on location, time, and work environment of each heat-related illness.

Results

Our major results are that 29 cases (61.7%) occurred during a heat wave. Forty five cases (95.7%) occurred when the maximum estimated WBGT (WBGTmax) was equal to or greater than the case specific threshold value which was determined by acclimatization and metabolic rate. Twenty two cases (46.8%) were not acclimated to the heat. Thirty-seven cases (78.7%) occurred after tropical night (temperature above 25 °C), during which many people may find it hard to sleep.

Conclusion

Personal risk factors such as heat acclimation as well as environmental factors and high metabolic rate during work are the major determinants of heat-related illnesses.

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Climate change and heat stress resilient outdoor workers: findings from systematic literature review
Peymaneh Habibi, Jaleh Razmjouei, Amirhossein Moradi, Farank Mahdavi, Saeed Fallah-Aliabadi, Ahad Heydari
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Augmented human thermal discomfort in urban centers of the Arabian Peninsula
Safi Ullah, Abdullah Aldossary, Waheed Ullah, Sami G. Al-Ghamdi
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Heat exposure and coping strategies for food delivery riders under urban heat extremes
Lanfei Jiang, Junqi Wang, Raúl Castaño-Rosa, Chen Zhong, Shi-jie Cao
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Guilherme Neto Ferrari, Gislaine Camila Lapasini Leal, Rodrigo Clemente Thom de Souza, Edwin Vladimir Cardoza Galdamez
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The Effect of Evaporative Cooling Vests on the Physiological and Perceptual Strain Indices of Construction Workers
Habibollah Dehghan, Mohammad Reza Mirzabe
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Investigation into the thermal comfort and physiological adaptability of outdoor physical training in college students
Tianwei Tang, Xiaoqing Zhou, Yuchun Zhang, Xiwen Feng, Weiwei Liu, Zhaosong Fang, Zhimin Zheng
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Characteristics of human thermal stress in South Asia during 1981–2019
Safi Ullah, Qinglong You, Guojie Wang, Waheed Ullah, D A Sachindra, Yechao Yan, Asher Samuel Bhatti, Adnan Abbas, Mushtaq Ahmad Jan
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Vaishnavi Barthwal, Suresh Jain, Ayushi Babuta, Chubamenla Jamir, Arun Kumar Sharma, Anant Mohan
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Construct validity and invariance assessment of the social impacts of occupational heat stress scale (SIOHSS) among Ghanaian mining workers
Victor Fannam Nunfam, Ebenezer Afrifa-Yamoah, Kwadwo Adusei-Asante, Eddie John Van Etten, Kwasi Frimpong, Isaac Adjei Mensah, Jacques Oosthuizen
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Heat Safety in the Workplace: Modified Delphi Consensus to Establish Strategies and Resources to Protect the US Workers
Margaret C. Morrissey, Douglas J. Casa, Gabrielle J. Brewer, William M. Adams, Yuri Hosokawa, Courteney L. Benjamin, Andrew J. Grundstein, David Hostler, Brendon P. McDermott, Meredith L. McQuerry, Rebecca L. Stearns, Erica M. Filep, David W. DeGroot, Jul
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Jongchul Park, Yeora Chae, Seo Hyung Choi
International Journal of Environmental Research and Public Health.2019; 16(9): 1561. CrossRef
Perceptions of climate change and occupational heat stress risks and adaptation strategies of mining workers in Ghana
Victor Fannam Nunfam, Jacques Oosthuizen, Kwadwo Adusei-Asante, Eddie John Van Etten, Kwasi Frimpong
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Sander Mathijn Spook, Wendy Koolhaas, Ute Bültmann, Sandra Brouwer
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The associations between blood mercury levels and shark meat intake among workers in Gyeongsangbuk-do: Gun Il Park, Young Seok Byun, Man Joong Jeon, Joon Sakong; Ann Occup Environ Med 2017;29:29. Published online June 27, 2017; DOI: https://doi.org/10.1186/s40557-017-0185-9

Abstract PDF PubReader ePub

Background

Shark meat is used as sacrificial food in Gyeongsangbuk-do, and is a major source of dietary mercury. This study aimed to evaluate the effects of shark meat intake or the ritual of Jesa on blood mercury levels within workers living in Gyeongsangbuk-do.

Methods

This study was conducted from September 2016 to October 2016 in two cities of Gyeongsangbuk-do. To compare the differences between urban and rural areas, two workplaces each in Daegu as the urban area and Yeongcheon as the rural area were selected. General characteristics and characteristics related to shark meat consumption of the workers were acquired by personal interviews during their health examination. Blood mercury concentrations were analyzed by the gold amalgamation method using a direct mercury analyzer (DMA-80; Milestone Inc., Shelton, CT, USA).

Results

The shark consumption group had a higher blood mercury concentration than the non-consumption group. The levels of blood mercury increased with the frequency, annual intake, as well as most recent date of shark meat consumption. Moreover, the levels of mercury in blood increased according to the annual frequency of participation in Jesa (times per year) and the annual frequency of shark meat consumption during Jesa (times per year).

Conclusions

Shark meat intake and the ritual of Jesa contributed to an increase in the blood mercury levels of workers in Gyeongsangbuk-do. Therefore, it is necessary to evaluate dietary exposure, occupational as well as other factors that may influence blood mercury concentrations in workers during their health examination, particularly in regions with high mercury exposures.

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Ji-Eun Oh, Tae-Hyeong Kim, Eun-Hee Lee
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Association of Blood Mercury Level with Liver Enzymes in Korean Adults: An Analysis of 2015–2017 Korean National Environmental Health Survey
Jin-Wook Chung, Dilaram Acharya, Jitendra Kumar Singh, Joon Sakong
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Increase of blood mercury level with shark meat consumption: A repeated-measures study before and after Chuseok, Korean holiday
Kiook Baek, Chulyong Park, Joon Sakong
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Mercury concentration in shark meat from traditional markets of Gyeongsangbuk-do, South Korea
Han Cheol Heo, Yeon Hee Lim, Young Seok Byun, Joon Sakong
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Mercury poisoning in a fisherman working on a pelagic fishing vessel due to excessive tuna consumption
Ji-Sung Ahn, Kyung Wook Kang, Won-Yang Kang, Hyeong-Min Lim, Seunghyeon Cho, Jai-Dong Moon, Won-Ju Park
Journal of Occupational Health.2018; 60(1): 89. CrossRef

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Case Report

The work-relatedness at a case of acute lymphoblastic leukemia in a radiation oncologist: Bong Hyun Kim, Young-Jun Kwon, Young-Su Ju, Bong Kyu Kim, Hyun Seok Lee, Sang-gil Lee, Yun Kyung Chung; Ann Occup Environ Med 2017;29:28. Published online June 27, 2017; DOI: https://doi.org/10.1186/s40557-017-0186-8

Abstract PDF PubReader ePub: Background
Clinicians who perform radiation therapy (RT) are exposed to radiation, which may negatively affect their health. The present study reports a case of acute lymphoblastic leukemia in a healthcare provider who was exposed to radiation at work; we also present a literature review of this topic.
Case presentation
A 45-year-old patient, who had been a radiation oncologist and had been exposed to radiation while performing brachytherapy 10 years ago, complained of chest pain and was suspected of having leukemia based on the results of a blood test in an outpatient clinic. He was diagnosed with acute lymphoblastic leukemia, and subsequently underwent chemotherapy. However, the case died during treatment. Through epidemiological investigation, it was found that the case’s cumulative exposure dose based on personal exposure and spatial dose measured during the work period was in the range of 6.08–12.15 mSv.
Conclusions
Based on the following considerations, acute lymphoblastic leukemia was highly correlated with the level of radiation to which the case was exposed while performing brachytherapy on patients with cancer. Firstly, the latent period of acute lymphoblastic leukemia in the case closely matched the latency time reported in previous published studies (5–10 years). In addition, numerous studies have reported significantly higher relative risks of cancer among clinicians who perform RT compared with the general population. The case was also atypically exposed to radiation through his hands, despite wearing protective equipment. Lastly, the case’s coworkers were also found to have been exposed to high levels of radiation. Investigation into the influence of radiation exposure through atypical routes during RT on the health of clinicians is recommended.

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Research Articles

Hazards and health problems in occupations dominated by aged workers in South Korea: Jungsun Park, Soo Geun Kim, Jong-shik Park, Boyoung Han, Kab Bae Kim, Yangho Kim; Ann Occup Environ Med 2017;29:27. Published online June 26, 2017; DOI: https://doi.org/10.1186/s40557-017-0177-9

Abstract PDF PubReader ePub

Background

South Korea’s population is aging more rapidly than any other country. Aging of the productive population will lead to shortage of labor and the decreasing quality of the labor force in South Korea. South Korea needs health care strategies to support the establishment of work environments that are appropriate for elderly workers who have reduced physical capacity. This paper aims to identify occupations that are dominated by aged workers and assess the exposure to hazards and work-related health problems of aged workers in these occupations.

Methods

We identified the 20 occupations in South Korea that employ the most aged workers (at least 55 years-old), among all 149 occupations that are defined as minor categories (identified by three digits) by the Korean Standard Classification of Occupations (KSCO). Exposure to hazards and work-related health problems of individuals in these occupations were evaluated by analyzing the results of the fourth Working Conditions Survey of 2014.

Results

Among the 20 occupations that employ the most aged workers, ‘Elementary Occupations’, which the KSCO classifies as major category (9), had the largest proportion of aged workers. After this, there were five occupations of skilled manual workers and six occupations of skilled non-manual workers. Aged workers in elementary and skilled manual occupations reported frequent exposure to job-specific hazards, such as noise, vibrations, high and low temperatures, solvents, and chemicals. Relative to other workers, aged workers in the occupations reported more frequent exposure to ergonomic hazards, such as tiring or painful positions, carrying or moving heavy loads, and repetitive movements, and also reported more work-related musculoskeletal disorders and general fatigue. Injury due to accident was common in machinery-handling occupations.

Conclusion

Job-specific hazards should be reduced to prevent occupation-related disorders in elementary and skilled manual occupations that are dominated by aged workers.

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Rahul Upadhyay, Ashis Bhattacherjee, Aditya Kumar Patra, Nearkasen Chau
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Dong Seok Shin, Byung Yong Jeong
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Fovziye Sanaati, Mehrnaz Geranmayeh, Zahra Behboodi Moghadam, Armin Zareiyan, Keshvar Samadaee Gelehkolaee, Mojgan Mirghafourvand
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Sungjin Park, June-Hee Lee
International Journal of Environmental Research and Public Health.2021; 18(12): 6299. CrossRef
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Jasmina Barakovic Husic, Francisco José Melero, Sabina Barakovic, Petre Lameski, Eftim Zdravevski, Petra Maresova, Ondrej Krejcar, Ivan Chorbev, Nuno M. Garcia, Vladimir Trajkovik
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Jungsun Park, Yangho Kim
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Shraddha Palikhe, Mi Yirong, Byoung Yoon Choi, Dong-Eun Lee
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Comparison of occupational health problems of employees and self-employed individuals who work in different fields
Jungsun Park, Boyoung Han, Yangho Kim
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Jungsun Park, Yangho Kim
International Journal of Environmental Research and Public Health.2020; 17(24): 9456. CrossRef
Non-Standard Workers Have Poorer Physical and Mental Health Than Standard Workers
Jaeouk Ahn, Nam-Soo Kim, Byung-Kook Lee, Jungsun Park, Yangho Kim
Journal of Occupational & Environmental Medicine.2019; 61(10): e413. CrossRef
The history of occupational health in South Korea
Jungsun Park, Yangho Kim
Archives of Environmental & Occupational Health.2019; 74(1-2): 50. CrossRef
Association of Job Satisfaction and Security With Subjective Health and Well-Being in Korean Employees
Jungsun Park, Boyoung Han, Yangho Kim
Journal of Occupational & Environmental Medicine.2018; 60(10): e525. CrossRef
Measuring Industrial Health Using a Diminished Quality of Life Instrument
Zuzhen Ji, Dirk Pons, John Pearse
Safety.2018; 4(4): 55. CrossRef

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Levels of blood lead and urinary cadmium in industrial complex residents in Ulsan: Sang Hoon Kim, Yang Ho Kim, Hyun Chan An, Joo Hyun Sung, Chang Sun Sim; Ann Occup Environ Med 2017;29:26. Published online June 26, 2017; DOI: https://doi.org/10.1186/s40557-017-0179-7

Abstract PDF PubReader ePub

Background

Populations neighboring industrial complexes are at an increased health risk, due to constant exposure to various potentially hazardous compounds released during industrial production activity. Although there are many previous studies that focus on occupational exposure to heavy metals, studies that focused on environmental exposure to lead and cadmium are relatively rare. The purpose of this study is to evaluate the extent of the environmental exposure of heavy metals in residents of industrial area.

Methods

Four areas in close proximity to the Ulsan petrochemical industrial complex and the Onsan national industrial complex were selected to be included in the exposure group, and an area remotely located from these industrial complexes was selected as the non-exposure group. Among the residents of our study areas, a total of 1573 subjects aged 20 years and older were selected and all study subjects completed a written questionnaire. Blood and urine samples were obtained from about one third of the subjects (465 subjects) who provided informed consent for biological sample collection. Total 429 subjects (320 subjects from exposure area, 109 subjects from non-exposure area) were included in final analysis.

Results

The geometric mean blood lead level among the subjects in the exposed group was 2.449 μg/dL, which was significantly higher than the non-exposure group’s level of 2.172 μg/dL. Similarly, the geometric mean urine cadmium levels between the two groups differed significantly, at 1.077 μg/g Cr. for the exposed group, and 0.709 μg/g Cr. for the non-exposure group.

In a multiple linear regression analysis to determine the relationship between blood lead level and related factors, the results showed that blood lead level had a significant positive correlation with age, the male, exposure area, and non-drinkers. In the same way, urine cadmium level was positively correlated with age, the female, exposure area, and smokers.

Conclusions

This study found that blood lead levels and urine cadmium levels were significantly higher among the residents of industrial areas than among the non-exposure area residents, which is thought to be due to the difference in environmental exposure of lead and cadmium. Furthermore, it was clear that at a low level of exposure, differences in blood lead or urine cadmium levels based on age, gender, and smoking status were greater than the differences based on area of residence. Therefore, when evaluating heavy metal levels in the body at a low level of exposure, age, gender, and smoking status must be adjusted, as they are significant confounding factors.

Citations

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Assessment of heavy radionuclides in blood samples for workers of a cement factory by X-ray fluorescence
Zakariya A. Hussein
Journal of Radiation Research and Applied Sciences.2023; 16(2): 100553. CrossRef
Urinary concentrations of heavy metals in pregnant women living near a petrochemical area according to the industrial activity
Xiruo Kou, Lucía Iglesias-Vázquez, Martí Nadal, Josep Basora, Victoria Arija
Environmental Research.2023; 235: 116677. CrossRef
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Jacopo J. V. Branca, Donatello Carrino, Ferdinando Paternostro, Gabriele Morucci, Claudia Fiorillo, Claudio Nicoletti, Massimo Gulisano, Carla Ghelardini, Lorenzo Di Cesare Mannelli, Matteo Becatti, Alessandra Pacini
Cells.2022; 11(10): 1646. CrossRef
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Tzu-Hsuen Yuan, Ming-Jie Jhuang, Yen-Po Yeh, Yi-Hsuan Chen, Sasha Lu, Chang-Chuan Chan
Journal of the Formosan Medical Association.2021; 120(10): 1845. CrossRef
Blood lead level and Helicobacter pylori infection in a healthy population: A cross-sectional study
Won-Ju Park, Soo-Hyeon Kim, WonYang Kang, Ji-Sung Ahn, Seunghyeon Cho, Dae-Young Lim, Suwhan Kim, Jai-Dong Moon
Archives of Environmental & Occupational Health.2020; 75(6): 333. CrossRef
Lead and kidney: Concentrations, variabilities, and associations across the various stages of glomerular function
Ram B. Jain
Journal of Trace Elements in Medicine and Biology.2019; 54: 36. CrossRef
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Thaís Karolina Lisboa de Queiroz, Karytta Sousa Naka, Lorena de Cássia dos Santos Mendes, Brenda Natasha Souza Costa, Iracina Maura de Jesus, Volney de Magalhães Câmara, Marcelo de Oliveira Lima
International Journal of Environmental Research and Public Health.2019; 16(17): 3047. CrossRef
A study on the concentration of biomarkers for heavy metals and VOCs in the residents living in the vicinity of Gwangyang Industrial Complex in Korea
Kyoungho Lee, Seokwon Lee, Ryoungme Ahn, Jae Hyoun Kim, Bu-Soon Son
Journal of Odor and Indoor Environment.2019; 18(3): 228. CrossRef
Risk assessment of lead and cadmium exposure from electronic waste recycling facilities in Southern Thailand
Peeranart Kiddee, Somsiri Decharat
Environmental Earth Sciences.2018;[Epub] CrossRef
Comparison of a 10-Year Cumulative Age-Standardized Incidence Rate of Lung Cancer among Metropolitan Cities in Korea (During the 2000–2009 Period): Review of Occupational and Environmental Hazards Associated with Lung Cancer
Joo Hyun Sung, Chang Sun Sim, Minsu Ock, Inbo Oh, Kyoung Sook Jeong, Cheolin Yoo
International Journal of Environmental Research and Public Health.2018; 15(6): 1259. CrossRef
Environmental and Body Concentrations of Heavy Metals at Sites Near and Distant from Industrial Complexes in Ulsan, Korea
Joo Hyun Sung, Inbo Oh, Ahra Kim, Jiho Lee, Chang Sun Sim, Cheolin Yoo, Sang Jin Park, Geun-Bae Kim, Yangho Kim
Journal of Korean Medical Science.2018;[Epub] CrossRef

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The relationship between serum vitamin D levels and sleep quality in fixed day indoor field workers in the electronics manufacturing industry in Korea: Young Saeng Jung, Chang Ho Chae, Young Ouk Kim, Jun Seok Son, Chan Woo Kim, Hyoung Ouk Park, Jun Ho Lee, Young Hoo Shin, Ho Sung Kwak; Ann Occup Environ Med 2017;29:25. Published online June 24, 2017; DOI: https://doi.org/10.1186/s40557-017-0187-7

Abstract PDF PubReader ePub

Background

Although recent studies have investigated the influence of vitamin D on sleep patterns, there is a lack of research on the relationship between vitamin D and sleep patterns in Korean workers. This study focused on the relationship between serum vitamin D levels and sleep in fixed day indoor field workers in the electronics manufacturing industry in Korea.

Methods

The 1472 subjects who were included in this study were selected from fixed day workers in the electronics manufacturing industry who had received a worker’s special health examination at a hospital in Changwon, South Gyeongsang Province between January 2015 and December 2015. Nighttime workers and those who showed symptoms of depression were excluded from this study. The sociodemographic and lifestyle variables of the participants were investigated, including age, sex, marital status, level of education, body mass index, smoking habits, alcohol consumption habits, and regular exercise. Work-related factors were evaluated, such as employee tenure and occupational stress. Serum 25-hydroxyvitamin D was measured as an indicator of vitamin D levels, and quality of sleep was evaluated using the Pittsburgh Sleep Quality Index (PSQI) translated into Korean.

Results

The subjects had a mean serum vitamin D level of 13.70 ± 5.93 ng/mL. Vitamin D deficiency, defined as a serum vitamin D level of <10 ng/mL, was found in 24.8% of males and significantly more frequently in females (47.6%). Poor sleep quality was reported by 19.8% of participants with serum vitamin D levels ≥10 ng/mL and by 21.7% of those with serum vitamin D levels <10 ng/mL, which was a significant difference (P = .007). Multiple logistic regression analysis adjusting for significant variables found that poor sleep quality was more likely in those with vitamin D deficiency than those with higher serum vitamin D levels (odds ratio = 1.36; 95% CI, 1.01–1.82). A comparison of serum vitamin D levels and PSQI components showed that the mean scores for subjective sleep quality, sleep latency, and sleep duration were significantly higher in the vitamin D-deficient participants, indicating that the vitamin D-deficient participants had poorer sleep quality.

Conclusions

This study investigated serum vitamin D levels in fixed day indoor field workers in the manufacturing industry in Korea and analyzed the relationship of vitamin D deficiency with sleep quality. A significant correlation was found between serum vitamin D deficiency and poor sleep quality. Based on the results of this study, sleep disorder management for workers can be improved by providing regular examinations checking their serum vitamin D levels and supplying vitamin D to workers with serum vitamin D deficiency to enhance their quality of sleep.

Citations

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Scientific Reports.2024;[Epub] CrossRef
Serum vitamin D concentrations and sleep disorders: insights from NHANES 2011–2016 and Mendelian Randomization analysis
Junjie Jiang, Hanyu Tan, Zhongfang Xia, Jun Li, Shuang Zhou, Tao Huang
Sleep and Breathing.2024; 28(4): 1679. CrossRef
Vitamin D deficiency: A forgotten aspect in sleep disorders? A critical update
Sophia Schiza, Izolde Bouloukaki, Athanasios Kaditis, Carolina Lombardi, Maria R. Bonsignore
Sleep Medicine.2024; 121: 77. CrossRef
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Vitamin D Physiology, Deficiency, Genetic Influence, and the Effects of Daily vs. Bolus Doses of Vitamin D on Overall Health: A Clinical Approach
Vincenzo Sorrenti, Alessandro Buriani, Sergio Davinelli, Giovanni Scapagnini, Stefano Fortinguerra
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Zehra İncedal Sonkaya, Burak Yazgan, Aslı Kurtgöz, Aslıhan Dilara Demir, Serap İncedal Irgat
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Seunghyun Kim, Jaeho Choi, Jiwon Min, Hyerhan Park, Ki Hyun Park, Booyoon Cheung, Soohyoung Lee
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L. K. Ibrayeva, D. Kh. Rybalkina, O. A. Evmenova, F. M. Turdaly, Zh. T. Ibragim
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Giovanna Muscogiuri, Luigi Barrea, Marianna Scannapieco, Carolina Di Somma, Massimo Scacchi, Gianluca Aimaretti, Silvia Savastano, Annamaria Colao, Paolo Marzullo
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Comparison of facet joint degeneration in firefighters and hospital office workers: Dong Hyun Kim, Yon Soo An, Hyung Doo Kim, Kyoung Sook Jeong, Yeon-Soon Ahn, Kun-Hyung Kim, Youngki Kim, Han-Soo Song, Chul-Gab Lee, Young-Jun Kwon, Jin-Ha Yoon; Ann Occup Environ Med 2017;29:24. Published online June 24, 2017; DOI: https://doi.org/10.1186/s40557-017-0180-1

Abstract PDF PubReader ePub

Background

There are few published studies on the relationship between occupational lumbar load and facet joint degeneration (FJD). This cross-sectional study was conducted to evaluate the effect of physical lumbar load on FJD by comparing magnetic resonance imaging (MRI) findings of firefighters (FFs) and hospital office workers (HOWs).

Methods

We randomly sampled 341 male FFs and 80 male HOWs by age stratification. A questionnaire and clinical examination, including MRI of the lumbar spine (T12-S1), were conducted. FJD was diagnosed and graded by using the classification of Pathria et al., and reclassified into two groups as follows: no FJD (grade 0) and FJD (grades 1, 2, and 3). The prevalence of FJD was analyzed according to occupational group.

Results

The prevalence of FJD ranged from 31% (L1–L2) to 75% (L4–L5) in the FFs, and from 18% (L1–L2) to 69% (L4–L5) in the HOWs. After adjustment for age, body mass index, and frequency of physical exercise, the adjusted odds ratios (OR) for FJD in the FFs were significantly higher than those in the HOWs at all lumbar spinal levels, except for L3–L4 (L1–L2: OR, 2.644; 95% confidence interval [CI], 1.317–5.310; L2–L3: OR, 2.285; 95% CI, 1.304–4.006; L4–L5: OR, 1.918; 95% CI, 1.037–3.544; L5–S1: OR, 1.811; 95% CI, 1.031–3.181).

Conclusion

This study shows that FFs exhibit a greater likelihood of having FJD than HOWs after controlling for other risk factors of FJD. This suggests that the physical occupational demands of FFs affect their risk of developing FJD.

Citations

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Non-cancer health risks in firefighters: a systematic review
Jeong Ah Kim, Soo Yeon Song, Wonjeong Jeong, Jae Kwan Jun
Epidemiology and Health.2022; 44: e2022109. CrossRef
Including exercise prescription in the management of non‐specific low back pain
Hamish Osborne, Peter Burt
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Hyung Doo Kim, Yon Soo An, Dong Hyun Kim, Kyung Sook Jeong, Yeon Soon Ahn
Annals of Occupational and Environmental Medicine.2018;[Epub] CrossRef

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