Annals of Occupational and Environmental Medicine

Editorial

Guidelines for recognition of occupational cancers in Korea: the results of scientific review by Korean Society of Occupational and Environmental Medicine (2013–2016): Jaechul Song, Kuck-Hyun Woo, Yang Ho Kim; Ann Occup Environ Med 2018;30:12. Published online February 12, 2018; DOI: https://doi.org/10.1186/s40557-018-0223-2

This thematic collection includes the articles to review eleven occupational cancer related risks or working conditions and to propose the guidelines of S. Korea.

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Dynamic characteristics of threshold values and extension field selections for a vacuum-blowing cleaning system
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Correction to: Guidelines for recognition of occupational cancers in Korea: the results of scientific review by Korean Society of Occupational and Environmental Medicine (2013–2016)
Jaechul Song, Kuck-Hyun Woo, YangHo Kim
Annals of Occupational and Environmental Medicine.2018;[Epub] CrossRef
Occupational cancer claims in Korea from 2010 to 2016
Kyungjoon Lee, Sujin Lee, Jeehee Min, Inah Kim
Annals of Occupational and Environmental Medicine.2018;[Epub] CrossRef

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Research Article

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.

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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
The Protection of Zinc against Acute Cadmium Exposure: A Morphological and Molecular Study on a BBB In Vitro Model
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
Relationship between renal function and metal exposure of residents living near the No. 6 Naphtha Cracking Complex: A cross-sectional study
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
Human Blood Lead Levels and the First Evidence of Environmental Exposure to Industrial Pollutants in the Amazon
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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Case Report

Two Case of Erythroleukemia and Myelodysplastic Syndrome in a Non-Destructive Inspector: Myoung Soon Oh, Jae Kook Yoon, Hyun Soo Kim, Hawk Kim, Jin Kyung Lee, Ji Ho Lee, Yang Ho Kim; Korean Journal of Occupational and Environmental Medicine 2011;23(4):471-479. Published online December 31, 2011; DOI: https://doi.org/10.35371/kjoem.2011.23.4.471

Abstract PDF

BACKGROUND
Ionizing radiation is a group 1 carcinogen according to the IARC(International Agency for Research on Cancer) classification. With the development of the radiation related industry, the number of radiation exposed workers has been increasing. There have been several reports on AML(Acute Myeloid Leukemia) on exposure to ionizing radiation; however, there are no reports of occupational malignant lymphohematopoietic disease related to non-destructive inspection.
CASE
REPORT 1: A 35-years-old male, who had worked for 10 years in non-destructive inspection, was diagnosed with myelodysplastic syndrome. He worked 8 hours a day, for three weeks per months, where he was exposed to 192Ir and 60Co radiation sources. Because he had not worn a film badge for monitoring his radiation exposure dose, the accurate exposure dose was not reported. The estimate exposure dose calculated via a chromosomal study was 1.20 Gy, which exceed the dose limits of Korean radiation dose standards, which are 50 and 100 mSv annually and quinquennially respectively.
CASE
REPORT 2: A 26-years-old male, who had worked for 2.5 years in the same company was also diagnosed with myelodysplastic syndrome.
CONCLUSION
Non-destructive inspection is the main source of ionizing radiation in the workplace, which could be the cause of malignant lymphohematopoietic diseases. Therefore, more practical plans and guidelines are needed to prevent non-destructive inspectors from workplace radiation exposure.

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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
Probability of causation for occupational cancer after exposure to ionizing radiation
Eun-A Kim, Eujin Lee, Seong-Kyu Kang, Meeseon Jeong
Annals of Occupational and Environmental Medicine.2018;[Epub] CrossRef
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
Consecutive results of blood cell count and retrospective biodosimetry: useful tools of health protection regulation for radiation workers
Seongjae Jang, Jin Kyung Lee, Minsu Cho, Su San Yang, Seung Hyun Kim, Wan Tae Kim
Occupational and Environmental Medicine.2016; 73(10): 694. CrossRef
Retrospective biodosimetry using translocation frequency in a stable cell of occupationally exposed to ionizing radiation
Min Su Cho, Jin Kyung Lee, Keum Seok Bae, Eun-Ae Han, Seong Jae Jang, Wi-Ho Ha, Seung-Sook Lee, Joan Francesc Barquinero, Wan Tae Kim
Journal of Radiation Research.2015; 56(4): 709. CrossRef
Exposure Assessment and Management of Ionizing Radiation
Eun-Kyo Chung, Kab-Bae Kim, Se-Wook Song
Journal of Korean Society of Occupational and Environmental Hygiene.2015; 25(1): 27. CrossRef
Physical Agents and Occupational Disease Compensation: Noise, Vibration, Radiation, and Other Physical Agents
Jiho Lee, Jungwon Kim
Journal of Korean Medical Science.2014; 29(Suppl): S72. CrossRef

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Original Articles

Distribution of Blood pressure and Current State of Life Style Modification on Male Workers in a Large Factory: Analysis According to JNC-6 Guideline: Seung Ho Jeon, Hye Eun Lee, Do Myung Paek, Yang Ho Kim, Jung Sun Park, Gang Won Park; Korean Journal of Occupational and Environmental Medicine 2003;15(4):364-372. Published online December 31, 2003; DOI: https://doi.org/10.35371/kjoem.2003.15.4.364

Abstract PDF: OBJECTIVES
To describe the distributions of blood pressure level and risk group, and the current state of life style modification in the population of a large factory.
METHODS
We surveyed 1,088 workers in a large factory from June 2002 to August 2002. Information related to hypertension was collected through a questionnaire and medical examination. We classified the blood pressure level and risk group using JNC-VI criteria, and the current state of life style modification and medication according to the blood pressure level in the entire study population. REULTS: The prevalence of hypertension was 30.1% in all workers. The distribution of blood pressure level was 656 (60.3%) in normal stage, 160 (14.7%) in high normal stage, 190 (17.5%) in stage 1, 67 (6.1%) in stage 2, and 15 (1.4%) in stage 3. The numbers of workers in risk groups A, B and C were 296 (27.2%), 690 (63.4%) and 102 (9.4%), respectively. Among all workers, 432 (39.7%) needed to modify their lifestyle; 106 of whom (24.5%) needed to go on hypertensive drug medication. Overweight subjects were more common in stage 2 than in other stages (p=0.02). The numbers of smokers and low-exercisers were signigicantly lower in the higher blood pressure group than the lower blood pressure group (p<0.01). Alcoholic drinking was evenly distributed in all blood pressure level.
CONCLUSION
The prevalence of hypertension was 30.1% in all workers. The most common stage of blood pressure level was normal, followed by stage 1, high normal stage, stage 2, stage 3. The number of subjects in risk group B was more than that in the other risk groups. We recommend total worker education and the practice of lifestyle modification.

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Epidemiologic Characteristics of Hand-Arm Vibration Syndrome through Occupational Disease Surveillance System in Busan, Ulsan, Kyungnam Province: Young hee Choi, Cheol In Yoo, Ji Ho Lee, Choong Ryeol Lee, Hun Lee, Young Wook Kim, Chang Ho Chae, Sang Baek Koh, Euna Kim, Lu Jin Lee, Yang ho Kim; Korean Journal of Occupational and Environmental Medicine 2003;15(3):261-268. Published online September 30, 2003; DOI: https://doi.org/10.35371/kjoem.2003.15.3.261

Abstract PDF: OBJECTIVES
The objectives of this study were to estimate the epidemiologic characteristics of hand-arm vibration syndrome (HAVS) due to occupational exposure of hand transmitted vibration and to identify the occupations and industries where such exposures arises, and the main sources of exposure.
METHODS
In April 2001 the Busan, Ulsan, and Kyung-Nam Province occupational disease surveillance system was established to measure the incidence and prevalence of work-related HAVS and other occupational diseases in these Korean provinces. Occupational physicians of nine hospitals in Busan, Ulsan, and Kyung-nam Province were involved in this project between April 2001 and November 2002. Physicians collected information through questionnaires and interviews. Information gathered included age, occupation, types of vibration tools used and presence of subjective symptoms such as vibration-induced white finger (VWF), numbness and tingling.
RESULTS
A total 192 cases were reported with 188 males and 4 females. The shipbuilding industry was the most common type of industry and grinders were the most common source of exposure. Symptoms of neurological disorder were more common than those of vascular disorder.
CONCLUSIONS
The authors concluded that exposure to hand transmitted vibration is common and that HAVS is one of the most common occupational diseases in Korea. However, the range and extent of hand transmitted vibration and the overall prevalence of HAVS in Korea is still unknown. More extensive research on this syndrome in order to priorite necessary preventive measures is required.

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Mental Disorders and Fitness for Work in Korea: Choong Ryeol Lee, Yang ho Kim, Cheol In Yoo, Ji Ho Lee, Hun Lee; Korean Journal of Occupational and Environmental Medicine 2003;15(3):224-236. Published online September 30, 2003; DOI: https://doi.org/10.35371/kjoem.2003.15.3.224

Abstract PDF

OBJECTIVES
This study investigated the actual state of people with mental disorders in Korea, in order to present an alternative proposal for their work fitness and vocational rehabilitation.
METHODS
The authors conducted this study through a review of statistics on the prevalence of mental disorder, labor laws, and the literatures related with work fitness and vocational rehabilitation of people with mental disorders.
RESULTS
According to recent surveys, about 3 million people in Korea are likely to have mental disorders which could lead to discrimination in social life and dishonor in occupational career, either in the present or near future. Therefore, evaluation of work fitness and vocational rehabilitation for persons with mental disorders are important. At present, work fitness for psychiatric patients is evaluated without suitable guidelines regarding the kinds and severity of mental disorders that impede work capacity. Furthermore, mental disorder-specific fitness for work is not under consideration.
CONCLUSION
It is true that most psychiatric patients have some limitation in performing their job. However, judging from the results of some research, proper displacement, apprehension of co-workers, and adjusted workplace could help them complete their tasks properly despite their troublesome psychiatric symptomatology. The government must help all citizens to do their best in their social life, and show a deep interest in the employment of all disabled people including those with psychiatric disorders. Above all we have to change our attitudes and preconceptions against people with mental disorders. Some labor laws, which presently impede employment of people with psychiatric disorders, need to be revised in their favor. Future work capacity evaluation should be done on the basis of ability to function in the workplace rather than symptomatology.

Citations

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The Relations among Attitude, Competency, and Appropriateness of Work on Student Suicide in Health Teachers
Jae Soon Yoo, Dallong Han, Chul-Gyu Kim
The Journal of Korean Academic Society of Nursing Education.2016; 22(4): 473. CrossRef
The Stigma of Mental Illness in Korea
Jong-Ik Park, Mina Jeon
Journal of Korean Neuropsychiatric Association.2016; 55(4): 299. CrossRef
Employment Discrimination Against Schizophrenia
Mary V. Seeman
Psychiatric Quarterly.2009; 80(1): 9. CrossRef

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Quantitative Assessment of Magnetic Resonance Imaging for the Noninvasive Evaluation of Bone Marrow Cellularity in Workers with Long-term Exposure to Solvents: Hae Kwan Cheong, Dae Seob Choi, Keon Uk Park, Hwan Jung Yun, Jung Ran Kim, Kyung Im Ha, Seoung Oh Yang, Yang Ho Kim; Korean Journal of Occupational and Environmental Medicine 2002;14(2):183-198. Published online June 30, 2002; DOI: https://doi.org/10.35371/kjoem.2002.14.2.183

Abstract PDF: OBJECTIVES
To develop a quantitative and noninvasive method of bone marrow cellularity evaluation in solvent-exposed painters.
METHODS
Six painters (mean age 46.5 years, 5 males and one female) with hypocellular marrow, and 132 controls were examined using magnetic resonance imaging (MRI). A full examination of the peripheral blood and a bone marrow biopsy was done on each patient. Signal intensities were measured at the vertebral bodies from T12 to S1 on both the T1- and the T2-weighted image (T1WI and T2WI). Signal indices were calculated by dividing the signal indices of the vertebral bodies by that of the paraspinal muscle and the subcutaneous fat in the same view.
RESULTS
The Bone marrow cellularities of the cases painters were between 20.3% and 33.6%. Signal indices based on the muscle at T1WI were greater in the cases of the painters compared to those of the controls (p<0.05, p<0.01). Signal indices based on the muscle at T1WI were significantly higher in older women compared with men (p< 0.05 ) . After adjusting for age and gender, the signal index of cases at S1 based on muscle of T1WI was higher than that of the controls by 0.364. Five of the six cases had a muscle signal index at S1 of T1WI higher than the mean + 1 standard deviation for the same age group and gender.
CONCLUSIONS
MR signal indices are influenced by constitutional factors such as fat content, bone density, and the presence of other pathology. However, after adequate adjustment, it can be used as a useful indicator of bone marrow cellularity in a high-risk population.

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Evaluation of Finger Skin Temperature by Cold Provocation Test for Diagnosis of Hand-Arm Vibration Syndrome: Cheol In Yoo, Ji Ho Lee, Choong Ryeol Lee, Hun Lee, Young Hee Choi, Yang Ho Kim; Korean Journal of Occupational and Environmental Medicine 2002;14(2):124-133. Published online June 30, 2002; DOI: https://doi.org/10.35371/kjoem.2002.14.2.124

Abstract PDF

OBJECTIVES
Various objective tests have been widely used worldwide for diagnosing the hand-arm vibration syndrome. Among these, the cold provocation test has been frequently used to confirm the presence of Raynaud's phenomenon. This study was carried out in order to evaluate finger skin temperature by cold provocation test(10 degrees C for 10 minute) for the diagnosis of hand-arm vibration syndrome METHODS: Fifty-eight workers who had been exposed to local vibration were examined. Information concerning age, occupation, types of vibration tools used, presence of subjective symptoms such as vibration induced white finger(VWF), and numbness and tingling were collected. The subjects were classified into three groups according to their symptoms(Vascular, Neural, and No symptom group). In order to examine the applicability of the cold provocation test using water at 10 degrees C for 10 minute, we compared finger skin temperature between the groups.
RESULTS
The mean value of the finger skin temperature at 5 minutes and 10 minutes after cold provocation as well as the recovery rate in the vascular group were significantly lower than that seen in the other groups.
CONCLUSIONS
The evaluation of finger skin temperature by cold provocation test is very useful method for the diagnosis of hand-arm vibration syndrome. The test results will assist in confirming the diagnosis of the hand-arm vibration syndrome.

Citations

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The Health Effects of Whole Body Vibration
Soo-Jin Lee, Soo-Yong Roh
Journal of the Ergonomics Society of Korea.2013; 32(4): 297. CrossRef

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Hematological Changes and Immunological Function in Children Living Near the Petrochemical Estate in Ulsan: Choong Ryeol Lee, Cheol In Yoo, Ji Ho Lee, Hun Lee, Yang Ho Kim; Korean Journal of Occupational and Environmental Medicine 2001;13(2):127-140. Published online June 30, 2001; DOI: https://doi.org/10.35371/kjoem.2001.13.2.127

Abstract PDF: OBJECTIVES
To evaluate the hematological changes and the immunological function of children living near the petrochemical estate in Ulsan.
METHODS
The study subjects comprised of 238 children who consisted of 143 children living near the petrochemical estate and 95 children living in a suburban area. We conducted the hematological examination 3 times, in April, July and October. Also we evaluated the immunological function of some children in July. To confirm differences between schools repeated measures ANOVA of generalized linear model was done controlling age and sex as covariates.
RESULTS
The blood cell counts of children showed differences between schools in accordance with the survey month. The total WBC, neutrophil, and lymphocyte counts of children living in a suburban area decreased in July and increased in October again, but those of some children living near the petrochemical estate did not changed distinctly. The RBC counts of children living in a suburban area decreased in July and increased in October again, but those of some children living near the petrochemical estate decreased as time passed. The changes of the amount of hemoglobin of all study subjects were similar with those of RBC. The platelet counts of all study subjects decreased in July and increased in October again. In the generalized linear model, school was a significant independent variable for the total WBC, RBC, and platelet counts, and sex was a significant independent variable for the RBC counts. Age was a significant independent variable for the lymphocyte and platelet counts. P values of all blood cell were statistically significant in interaction variable between the survey month and school, and those of the total WBC, neutrophil, and lymphocyte counts were statistically significant in interaction variable between the survey month and age. The immunological function showed no significant difference between study groups.
CONCLUSIONS
The total WBC and RBC counts which would be easily affected by volatile organic compounds(VOCs) in the atmosphere showed differences between schools in accordance with the survey month. This suggests that the amounts of exposure to VOCs are different among each school children in different months. To ascertain the hematological changes by VOCs, an additional study evaluating the concentrations of atmosphere of VOCs and biological monitoring of some VOCs is needed.

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Impact of Solvent Exposure on the Occupational Hearing Loss: Ji Ho Lee, Young Ju Go, Hun Lee, Jung Hak Kang, Cheol In Yoo, Choong Ryeol Lee, Yang Ho Kim; Korean Journal of Occupational and Environmental Medicine 2000;12(4):537-546. Published online December 31, 2000; DOI: https://doi.org/10.35371/kjoem.2000.12.4.537

Abstract PDF

OBJECTIVES
This study was to evaluate the impacts of simultaneous exposure to noise and mixed solvents on workers'hearing threshold level (HTL) over five-year period.
METHODS
The study was conducted by interview and annual audiometric test on workers in ship building industry from 1994 to 1998. The cases(workers who exposed to noise and mixed solvent simultaneously) were 43 male workers and controls (workers who exposed to nolle) were selected by matching method with regard to age, sex, carrier, and noise exposure level. To assess the impacts of solvent exposure on hearing threshold level, with considering other factors, general liner model was used.
RESULTS
1. The audiogram of all subjects showed typical sensorineural hearing loss pattern. The mean HTLe were increased at high frequency (4000HB and 8000Hz) for study period. 2. The HTLs of cases were more increased than those of controls at high frequencies (4000Hz and 8000Hz), but there was not statlstical significance. 3. The impact of age on the HTL was statistically significant at 250Hz and 500Hz (p(0.05), and the impact of noise on the HTL was statistically significant at 250Hz, 2000Hz and 4000Hz (p(0.05), but the impact solvent exposure on the HTL was not significant. 4. The changes in HTLs of cases were higher than those of controls at high frequency, there were not statistical significance at 4000Hz, but only at 8000Hz (p=0.087). 5. Statistical analysis of the general linear model implicated that the changes in HTL was impacted by noise exposure bevel significantly (p=0.031) and Impacted by solvent exposure weakly (p=0.087) at 8000Hz.
CONCLUSIONS
The results of this study suggest that workers who simultaneously exposed to noise and mixed solvent were at risk for more affected HTL than those exposed to noise exposure only, but we could not find definitive evidence. Further detailed studies must be made in large number of workers.

Citations

Citations to this article as recorded by

Occupational Hearing Loss in Korea
Kyoo Sang Kim
Journal of Korean Medical Science.2010; 25(Suppl): S62. CrossRef

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Prevalence and Risk Factors of Occupational Low Back Pain among the Production Workers in a Steel and a Welding Material Manufacturing Factories: Hyun Sul Lim, Soo Keun Kim, Duck Soo Kim, Doohie Kim, Jongmin Lee, Yang Ho Kim; Korean Journal of Occupational and Environmental Medicine 1999;11(1):52-65. Published online March 31, 1999; DOI: https://doi.org/10.35371/kjoem.1999.11.1.52

Abstract PDF

A cross-sectional study was conducted for detecting the risk factors and to propose an effective control program for occupational low back pain. The subjects were 1,665 male production workers employed at a steel factory and a welding material manufacturing factory. The data were collected by a self-reported questionnaire and a medical examination with a rehabilitation specialist for ten days in September, 1997. The contents of the questionnaire were as follows: general characteristics, physical characteristics, employment status, type of work, working environment and the experience of low back pain. The number of cases with symptoms of occupational low back pain were 321, so the point prevalence was 19.3 persons/100 persons. The number of cases with a history of occupational low back pain for one year were 554, so the one year period prevalence was 33.3 persons/100 persons. The point and one year period prevalences of occupational low back pain showed no significant differences in age, marital status, educational level and body mass index. The point and one year period prevalences of occupational low back pain showed no significant differences in alcohol drinking, smoking, stretching exercise and regular exercise. The point and one year period prevalences of occupational low back pain were significantly higher in the unsatisfied group than the satisfied group(p < 0.01), However, no significant differences were found among tenures and shift work. The point and one year period prevalences of occupational low back pain were significantly higher in the lifting of heavy materials group than the nonlifting group(p < 0.01). However, no significant differences were found among posture of the waist and the working posture. Through the multivariate logistic regression, significantly associated factors with occupational low back pain were found to be dissatisfaction with job(point prevalence: OR=1.78, 95% CI: 1.21-2.61; one year prevalence: OR=1.76, 95% CI: 1.26-2.47), lifting of heavy materials(point prevalence: OR=1.94. 95% CI: 1.44-2.61: one year prevalence: OR=2.17, 95% CI: 1.70-2.77) and tenure(point prevalence: OR=1.03. 95% CI: 1.01-1.06: one year prevalence: OR=1.02, 95% CI: 1.00-1.05).

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Incidence and Risk Factors for Occupational Low Back Pain among Seafarer’s
Jae-Ho KIM
JOURNAL OF FISHRIES AND MARINE SCIENCES EDUCATION.2018; 30(4): 1265. CrossRef

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Neuropsychiatric Symptoms of Workers Exposed to 2-Bromopropane: Kyeong Sook Choi, Byung Yeol Chun, Jung Sun Park, Yang Ho Kim, Young Hahn Moon; Korean Journal of Occupational and Environmental Medicine 1997;9(2):301-308. Published online June 30, 1997; DOI: https://doi.org/10.35371/kjoem.1997.9.2.301

Abstract PDF

To investigate the impact of 2-bromopropane on neuropsychiatric symptoms, 33 exposed workers and 77 non-exposes workers in electronic company were recruited. Neuropsychiatric symptoms were assessed using self-administered questionnaire. Memory disturbance, concentration disturbance, sleep disturbance, understanding disturbance and acute irritation symptom were more frequent in workers exposed to 2-bromopropane. To investigate the association between 2-bromopropane exposure and neuropsychiatric symptoms, total symptom scores of exposed workers were compared with those of non-exposed workers. Mean value in the exposed workers was significantly higher than that of non-exposed comparisons. The mean value of total symptom score of smokers in exposed workers was significantly higher than that of smokers in non-exposed workers. In multivariate regression analysis, exposure status was significant predictor for total symptom score after controlling the effects of age, sex, education, smoking status and alcohol intake. Above findings suggest that 2-bromopropane was significantly associated with neuropsychiatric symptoms. Therefore, it is recommended that further research with objective assessments and long follow-up should be done to confirm the results of this study.

Citations

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Occupational Psychiatric Disorders in Korea
Kyeong-Sook Choi, Seong-Kyu Kang
Journal of Korean Medical Science.2010; 25(Suppl): S87. CrossRef

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