Annals of Occupational and Environmental Medicine

Research Article

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

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.

Citations

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Effects of Behavioral, Clinical, and Policy Interventions in Reducing Human Exposure to Bisphenols and Phthalates: A Scoping Review
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
Environmental Health Perspectives.2024;[Epub] CrossRef
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
Environment International.2024; 183: 108373. CrossRef
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
Science of The Total Environment.2023; 868: 161668. CrossRef
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
Annals of Occupational and Environmental Medicine.2020;[Epub] CrossRef
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
Science of The Total Environment.2019; 681: 175. CrossRef
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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Research Article

The association between long working hours and hearing impairment in noise unexposed workers: data from the 5th Korea National Health and Nutrition Examination Survey (KNHANES 2010–2012): Jung-Woo Park, Jin-Soo Park, Seyoung Kim, Minkyu Park, Hyunrim Choi, Sinye Lim; Ann Occup Environ Med 2016;28:55. Published online October 6, 2016; DOI: https://doi.org/10.1186/s40557-016-0140-1

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Background

This study is aimed at finding out the relationship between long working hours, one of major job stress elements, and hearing impairment in unexposed workers to occupational and environmental noise.

Methods

This study was performed on 1628 regular, full-time wage workers between the age of 25-64 who indicated in the survey of having no experience of exposure to noise, normal otoscopic findings, and not suffering from diabetes based on the data from the fifth Korea National Health and Nutrition Examination Survey (KNHANES 2010–2012). The average working hours per week was categorized into 40 h and lower group, more than 40 to 48 h group, more than 48 to 60 h group, and more than 60 h group. The groups were defined as suffering from low or high frequencies hearing impairment if the average hearing threshold for 0.5, 1, 2 kHz or 3, 4, 6 kHz in both ears exceeds 25 dB based on the pure tone audiometry. The association between average weekly working hours and hearing impairment was analyzed using logistic regression after gender stratification.

Results

The prevalences of low and high frequencies hearing impairment in male workers were 4.3 and 28.6 %, respectively, which were much higher than female’s prevalence of 2.7 and 11.1 %. For male workers, no significant association was found between average weekly working hours and low and high frequencies hearing impairment. For female workers, odds ratios (OR) of low and high frequencies hearing impairment were 4.22 (95 % confidence interval (CI) 1.09–16.27) and 4.49 (95 % CI 1.73–11.67), respectively, after controlling for several related factors, such as, age, Body Mass Index (BMI), socio-economic status, health-related behavioral, and occupational characteristics variables, in the final model in the group working more than 60 h compared to the group working 40 h and lower. In addition, a dose-response relationship was observed that ORs of low and high frequencies hearing impairment were increased according to increasing average weekly working hours.

Conclusions

The association between long working hours and hearing impairment in both low and high frequencies was significant in Korean female workers with a dose-response relationship. Therefore, the law to change the culture of long working hours should be enacted in order to protect the workers’ health and improve the quality of life in Korean workers.

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Hearing Impairment and Allostatic Load in Older Adults
Eric Y. Du, Kening Jiang, Michelle C. Carlson, Nicholas S. Reed, Jennifer A. Deal
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Long working hours are associated with a higher risk of non-alcoholic fatty liver disease: A large population-based Korean cohort study
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Occupational Differences in C-Reactive Protein Among Working-Age Adults in South Korea
Yongjoo Kim, Masayoshi Zaitsu, Kanami Tsuno, Xiaoyu Li, Sunmin Lee, Soong-nang Jang, Ichiro Kawachi
Journal of Occupational & Environmental Medicine.2020; 62(3): 194. CrossRef
Audiometric notch for the prediction of early occupational hearing loss and its association with the interleukin-1beta genotype
Nagat M. Amer, Mona M. Taha, Khadiga S. Ibrahim, Heba M. Abdallah, Eman M. El Tahlawy
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Long working hours are associated with unmet dental needs in south Korean male adults who have experienced dental pain
Yitak Kim, Sangwon Lee, Juyeong Kim, Eun-Cheol Park, Sung-In Jang
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PLOS ONE.2017; 12(6): e0179973. CrossRef

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Research Article

The relationship between night work and involuntary weight change: data from the fifth Korea National Health and Nutrition Examination Survey (KNHANES 2010–2012): Jongho Kwon, Jung-Woo Park, Jin-Soo Park, Seyoung Kim, Hyunrim Choi, Sinye Lim; Ann Occup Environ Med 2016;28:4. Published online January 29, 2016; DOI: https://doi.org/10.1186/s40557-016-0088-1

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Background

Previous studies on the association between shift or night work and weight change have been focused on finding the risk of weight gain caused by shift or night work. In this study, we aimed to reveal the risk of weight gain and weight loss associated with night work by using a nationwide representative data.

Methods

This study was performed on 1605 full-time wage workers between the age of 20 and 69 based on the fifth Korea National Health and Nutrition Examination Survey (KNHANES 2010–2012). The association between night work and involuntary weight change in the previous year was divided into the categories of weight gain and weight loss and studied with modifications in socio-demographic variables, health behavior-related variables, and occupational characteristic variables.

Results

The participants working in night work accounted for 10.6 % of total study participants (male; 11.9 %, female 7.4 %). Workers who worked more than 48 hours per week on average accounted for 41.6 % of the total study participants (male; 46.3 %, female 29.1 %).

Odds ratio (OR) of weight loss associated with night work in male workers was 0.34 (95 % confidence interval (CI) 0.16–0.76) after controlling for several related factors. OR of weight loss associated with night work in female workers with long working hours was 1.95 (95 % CI 0.47–80.86) and that of weight gain was 2.83 (95 % CI 0.12–69.83) after adjusting associated factors.

Conclusions

In this cross-sectional study with national representative sample, night work may lower the risk of weight loss in male workers and induce weight change (weight loss or weight gain) in female workers with long working hours. Therefore, future studies with cohort study design for night workers are needed to reveal the mechanisms and health effects of weight change associated with night work and establish proper management solutions with health and labor policies for Korean night workers.

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Annals of Occupational and Environmental Medicine.2016;[Epub] CrossRef

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Research Article

The Association between Long Working Hours and Self-Rated Health: Jun-Taek Song, Goeun Lee, Jongho Kwon, Jung-Woo Park, Hyunrim Choi, Sinye Lim; Ann Occup Environ Med 2014;26:2-2. Published online January 20, 2014; DOI: https://doi.org/10.1186/2052-4374-26-2

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Objectives

This study was conducted to determine the number of hours worked per week by full-time wage workers by using the data of the Korean Labor and Income Panel Study (KLIPS), which represents the domestic urban area household, and to determine the association between weekly working hours and the level of self-rated health.

Methods

We used data from the 11th KLIPS conducted in 2008. The subjects of this study were 3,699 full-time wage workers between the ages of 25 and 64 years. The association between weekly working hours and self-rated health was analyzed considering socio-demographic characteristics, work environment, and health-related behaviors.

Results

Among the workers, 29.7% worked less than 40 hours per week; 39.7%, more than 40 to 52 hours; 19.7%, more than 52 to 60 hours; and 10.9%, more than 60 hours per week. After controlling for socio-demographic variables, work environment-related variables, and health-related behavior variables, the odds ratio (OR) for poor self-rated health for the group working more than 40 hours and up to 52 hours was calculated to be 1.06 (95% confidence interval (CI), 0.89-1.27) when the group working less than 40 hours per week was considered the reference. The OR for the group working more than 60 hours was 1.42 (95% CI, 1.10-1.83) and that for the group working more than 52 hours and up to 60 hours was 1.07 (95% CI, 0.86-1.33). After stratification by gender and tenure, the OR of the female workers group and that of the group with a tenure of more than 1 year were found to be significantly higher than those of the other groups.

Conclusions

This study showed that workers working more than 60 hours per week have a significantly higher risk of poor self-rated health than workers working less than 40 hours per week. This effect was more obvious for the female workers group and the group with a tenure of more than 1 year. In the future, longitudinal studies may be needed to determine the association between long working hours and various health effects in Korean workers.

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Original Article

The Association between Shift Work and Bone Mineral Density : analysis of 2008-2009 Korean National Health and Nutrition Examination Survey: Jong Ho Wang, Goeun Lee, Jun Taek Song, Jongho Kwon, Hyunrim Choi, Kyunghee Jung-Choi, Sinye Lim; Korean Journal of Occupational and Environmental Medicine 2012;24(3):274-286. Published online September 30, 2012; DOI: https://doi.org/10.35371/kjoem.2012.24.3.274

Abstract PDF

OBJECTIVES
The objectives of this study were to explore the association between shift work and the bone mineral density in a representative sample of Korean workers.
METHODS
He data from the Fourth Korean National Health and Nutrition Examination Survey (2008-2009) was used. The participants were Korean workers aged 16 to 60 years. Logistic regression analysis was applied to determine the association between shift work and the bone mineral density after controlling for covariates using the SAS version 9.3 package program.
RESULTS
The blood vitamin D level in shift workers was significantly lower than that of day workers in both males and females. In male shift workers, shift work was significantly associated with a decreased bone mineral density in the femoral neck (odds ratio(OR) 1.42, 95% confidence interval(CI)=1.05~1.92) and lumbar spine (OR 1.53, 95% CI=1.09~2.15) compared to day workers. After controlling for covariates, this association was still significant. In the case of female shift workers, shift work was significantly related to a decreased bone mineral density in the total femur (OR 2.84, 95% CI=1.69~4.79) and lumbar spine (OR 1.58, 95% CI=1.12~2.24). After controlling for covariates, this risk was not statistically significant.
CONCLUSIONS
The blood vitamin D level of shift workers was significantly lower than that of day workers. In male shift workers, shift work can decrease the bone mineral density in the femoral neck and lumbar spine. Prospective studies with information on the shift work intensity and duration and exposuredata to explain mechanisms will be needed.

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Original Article

The Effect of Shift Work on the Level of Self-Rated Health: Daehee Noh, Jong Ho Wang, Hyunrim Choi, Sinye Lim, Keunwhoe Kim, Chang Won Won, Kyunghee Jung-Choi; Korean Journal of Occupational and Environmental Medicine 2010;22(3):200-209. Published online September 30, 2010; DOI: https://doi.org/10.35371/kjoem.2010.22.3.200

Abstract PDF

OBJECTIVES
The present study was designed to determine the characteristics of shift work and the relationship between shift work and the level of self-rated health using the Korean Labor and Income Panel Study (KLIPS) data, which represents urban households in Korea.
METHODS
Using the 9th wave of KLIPS, this study analyzed 2,087 male workers aged 25 to 64 years; participants missing data were excluded from analysis. To determine the impact of shift work on the level of self-rated health, logistic regression analysis was applied that controlled for socio-demographic characteristics, labor environment, and health-related behaviors.
RESULTS
Shift workers comprised 13.4% of study subjects overall. The majority(69.2%) of participants were in 2-teams and in 2-shifts. Week 1 shift cycle changes were the highest, 56.3%. The risk of poor self-rated health was not significantly higher among shift workers compared to non-shift workers (OR=1.08, 95% CI=0.79~1.48). When divided by tenure, shift workers with more than 10-years experience (OR=1.79, 95% CI=0.91~3.50) tended to show greater risk than non-shift workers at marginal significance.
CONCLUSIONS
In the present study, a significantly higher risk of self-rated poor health among shift workers was not observed. However, shift workers with more than 10-years experience tended to show increased health risk compared to non-shift workers. Further studies are required to determine time-series data and to consider both healthy worker effect and information bias.

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