Annals of Occupational and Environmental Medicine

Sun Haeng Choi

3 Articles

The Health Status Including Biologic Exposure Indices of Migrant Workers: Based on 2005 Special Health Examination Data: Yoon Hee Song, Kyoo Sang Kim, Sun Wung Lee, Sun Haeng Choi; Korean Journal of Occupational and Environmental Medicine 2008;20(2):63-73. Published online June 30, 2008; DOI: https://doi.org/10.35371/kjoem.2008.20.2.63

OBJECTIVES
To investigate the general health status and severity of exposure to hazardous agents - with a focus on heavy metals - of migrant workers utilizing the 2005 Special Health Examination data.
METHODS
With data from the 2005 Special Health Examination, we examined the biologic exposure indices and several major clinical exam items of 25,086 migrant workers in the whole country in comparison with those of 19,616 native Korean workers in Kyunggi-do province. Of these we chose homogeneous samples from the same 3 health service centers in Kyunggi-do. (native workers:19,616, migrant workers:1,886) to be more precise.
RESULTS
The results from the samples of the 3 centers were as follows. Blood lead (natives: 6.09 microgram/dl migrants: 8.37 microgram/L) and cadmium (natives: 0.29 microgram/dl, migrants: 0.36 microgram/L) were higher in the migrant workers than in the native Korean workers, whereas the biologic exposure indices of organic solvents were higher in the native workers. As for major clinical exam items, the liver battery was worse in the natives with incidence of abnormal AST/ALT level (natives: 8.1/6.8% migrants: 5.7/5.4%, p-value<0.01 for AST). Anemia was more prevalent in the migrant workers (natives: 9.0% migrants: 11.0%, p-value<0.05).
CONCLUSIONS
Migrant workers in Korea are more frequently or more severely exposed to a hazardous working environment containing heavy metals. However, we were not able to explain the results for the exposure indices or organic solvents, and such an explanation will require further study in the future.

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Migrant well-being and undocumented status in South Korea: a cross-sectional assessment of physical, psychological, social well-being, and health behaviors
Sun Yeop Lee, Woong-Han Kim, Jongho Heo
International Journal for Equity in Health.2024;[Epub] CrossRef
Occupational Characteristics and Health Status of Vietnamese Male Migrant Workers in the Republic of Korea
Ohwi Kwon, Ji-Hun Song, Jeong-Ok Kong, Seong-Won Ma, Young Shin Lee, Joonho Ahn
Safety and Health at Work.2023; 14(3): 267. CrossRef
Vulnerable Factors Affecting Urinary N-Methylformamide Concentration among Migrant Workers in Manufacturing Industries in Comparison with Native Workers in the Republic of Korea (2012–2019)
Kyung-Eun Lee, Kayoung Park, Dong Joon Park, Sungkyun Park
International Journal of Environmental Research and Public Health.2022; 19(20): 13450. CrossRef

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The Association among Exposure of Bisphenol A, Genetic Polymorphism of Metabolic Enzyme and Urinary Metabolite: Sang Baek Koh, Jun Ho Park, Su Song Yun, Sung Su Oh, Sei Jin Chang, Sun Haeng Choi, Bong Suk Cha; Korean Journal of Occupational and Environmental Medicine 2008;20(2):112-118. Published online June 30, 2008; DOI: https://doi.org/10.35371/kjoem.2008.20.2.112

Abstract PDF

OBJECTIVES
To examine bisphenol A (BPA) exposure with subjects in the manufacturing industry and to determine its correlation with metabolites according to genetic polymorphism of metabolic enzymes.
METHODS
The study subjects comprised 104 workers in the manufacturing industry, 64 and 40 in the exposed and control groups, respectively. The questionnaire variablesincluded age, use of protective equipment, smoking habit and alcohol intake. Their urine samples were collected in the afternoon and urinary BPA concentration was measured by revising with the urinary creatinine concentration. The genetic polymorphism of the metabolic enzymes was examined by using restriction fragment length polymorphism (RFLP) after extracting DNA from leucocytes.
RESULTS
The minimum and maximum BPA level of the exposed group during working time was 34.22 and 221.20 ng/mg, respectively. The urinary BPA concentration was significantly higher in the exposed groups than in the control group. There was no significant difference in the urinary BPA level according to genetic polymorphism of CYP1A1 and CYP2E1, but UGT1A6 showed a significant difference. In multiple regression analysis on the urinary and airborne BPA levels, UGT1A6, use of protective equipments and workplaces were significant variables.
CONCLUSIONS
The urinary BPA concentration was affected by the levels to which workers were exposed during their working time and was considered to be metabolized by UGT1A6.

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Filling gaps between exposure modeling and the analysis of urinary biomarkers using personal air monitoring: An intervention study of permethrin used in home insecticide spray
Seon‐Kyung Park, Heon‐Jun Lee, Eugene Song, Yerin Jung, Hyun Jung Yoo, Jeong‐Eun Oh, Hyeong‐Moo Shin, Jung‐Hwan Kwon
Indoor Air.2022;[Epub] CrossRef
Study Design, Rationale and Procedures for Human Biomonitoring of Hazardous Chemicals from Foods and Cooking in Korea
Seokwon Lee, Ryoung Me Ahn, Jae Hyoun Kim, Yoon-Deok Han, Jin Heon Lee, Bu-Soon Son, Kyoungho Lee
International Journal of Environmental Research and Public Health.2019; 16(14): 2583. CrossRef

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Analysis of the role of social support on job stress and psychosocial stress in automobile factory workers using Structural Equation Model: Dong Hee Koh, Sun Sil Han, Hyoung Ryoul Kim, Sei Jin Chang, Sun Haeng Choi, Jong Uk Won, Jae Hoon Roh; Korean Journal of Occupational and Environmental Medicine 2005;17(2):79-84. Published online June 30, 2005; DOI: https://doi.org/10.35371/kjoem.2005.17.2.79

Abstract PDF

OBJECTIVES
Social support was previously regarded as acting only a stress modifier, but many recent studies have found a direct effect on stress. The purpose of this study is to evaluate the role of social support on job stress and psychosocial stress to determine whether it acts via direct effect or indirect effect.
METHODS
This study was performed in May 2003. The study population consisted of 425 male workers in an automobile factory in Korea. Data were collected with structured self-administered questionnaires. We used JCQ(Job Contents Questionnaires) to measure job stress and social support, and PWI-SF(Psychosocial Well-being Index-Short Form) to measure stress outcome. We analysed the relationships using Structural Equation Modeling software AMOS4.
RESULTS
It was found that social support acts both as a direct stressor and an indirect stressor via job stress. However the direct effect was double the indirect effect.
CONCLUSIONS
The direct effect of social support on stress was the more major. Therefore social support is an independent stressor rather than a stress modifier in automobile factory workers.

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Psychosocial stress accompanied by an unhealthy eating behavior is associated with abdominal obesity in Korean adults: A community-based prospective cohort study
Minji Kim, Yangha Kim
Frontiers in Nutrition.2022;[Epub] CrossRef
Effect of Forest Users’ Stress on Perceived Restorativeness, Forest Recreation Motivation, and Mental Well-Being during COVID-19 Pandemic
Don-Gak Lee, Jin-Gun Kim, Bum-Jin Park, Won Sop Shin
International Journal of Environmental Research and Public Health.2022; 19(11): 6675. CrossRef
Effect of Psychosocial Distress on the Rate of Kidney Function Decline
Jae Young Kim, Young Su Joo, Jong Hyun Jhee, Seung Hyeok Han, Tae-Hyun Yoo, Shin-Wook Kang, Jung Tak Park
Journal of General Internal Medicine.2021; 36(10): 2966. CrossRef

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