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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

Annals of Occupational and Environmental Medicine.2017;29(1):42-. doi: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.
Adult ; Drinking ; Drinking Water ; Environmental Health* ; Female ; Frozen Foods ; Humans ; Logistic Models ; Male ; Odds Ratio

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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

Annals of Occupational and Environmental Medicine.2017;29(1):37-. doi:10.1186/s40557-017-0194-8

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.
Albuminuria ; Biological Clocks ; Cardiovascular Diseases ; Female ; Humans ; Korea ; Logistic Models ; Male ; Odds Ratio ; Prevalence ; Reference Values

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Vibration upshot of operating mechanical sewing machine: an insight into common peroneal nerve conduction study.

Prakash Kumar YADAV ; Ram Lochan YADAV ; Deepak SHARMA ; Dev Kumar SHAH ; Niraj Khatri SAPKOTA ; Dilip THAKUR ; Nirmala LIMBU ; Md Nazrul ISLAM

Annals of Occupational and Environmental Medicine.2017;29(1):8-. doi:10.1186/s40557-017-0164-1

BACKGROUND: Most of the people associated with tailoring occupation in Nepal are still using mechanical sewing machine as an alternative of new technology for tailoring. Common peroneal nerves of both right and left legs are exposed to strenuous and chronic stress exerted by vibration and paddling of mechanical sewing machine. METHODS: The study included 30 healthy male tailors and 30 healthy male individuals. Anthropometric variables as well as cardio respiratory variables were determined for each subject. Standard Nerve Conduction Techniques using constant measured distances were applied to evaluate common peroneal nerve (motor) in both legs of each individual. Data were analyzed and compared between study and control groups using Man Whitney U test setting the significance level p ≤ 0.05. RESULTS: Anthropometric and cardio respiratory variables were not significantly altered between the study and control groups. The Compound muscle action potential (CMAP) latency of common peroneal nerves of both right [(11.29 ± 1.25 vs. 10.03 ± 1.37), P < 0.001] and left [(11.28 ± 1.38 vs. 10.05 ± 1.37), P < 0.01] legs was found to be significantly prolonged in study group as compared to control group. The Amp-CMAP of common peroneal nerves of both right [(4.57 ± 1.21 vs. 6.22 ± 1.72), P < 0.001] and left [(4.31 ± 1.55 vs. 6.25 ± 1.70), P < 0.001] legs was found significantly reduced in study group as compared to control group. Similarly, the motor nerve conduction velocity (MNCV) of common peroneal nerves of both right [(43.72 ± 3.25 vs. 47.49 ± 4.17), P < 0.001] and left [(42.51 ± 3.82 vs. 46.76 ± 4.51), P < 0.001] legs was also found to be significantly reduced in study group in comparison to control group. CONCLUSION: Operating mechanical sewing machine by paddling chronically and arduously could have attributed to abnormal nerve conduction study parameters due to vibration effect of the machine on right and left common peroneal nerves. The results of present study follow the trend towards presymptomatic or asymptomatic neuropathy similar to subclinical neuropathy.
Action Potentials ; Humans ; Leg ; Male ; Nepal ; Neural Conduction ; Occupations ; Peroneal Nerve* ; Vibration*

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Occupational exposure to sharps injury among healthcare providers in Ethiopia regional hospitals.

Nigussie Tadesse SHAREW ; Getaneh Baye MULU ; Tesfa Dejenie HABTEWOLD ; Kefyalew Dagne GIZACHEW

Annals of Occupational and Environmental Medicine.2017;29(1):7-. doi:10.1186/s40557-017-0163-2

BACKGROUND: Sharps injury is a penetrating stab wound from a needle, scalpel, or another sharp object that may result in exposure to blood or other body fluids. According to World Health Organization pooled estimate, the annual incidence of sharps injury in Africa was ranged from 2.10 to 4.68 per person per year, but research data in Ethiopia is limited. The aim of the study was to investigate sharps injury prevalence and associated risk factors. METHODS: Institution based cross-sectional study was conducted with 200 healthcare providers (HCP) in Northeast Ethiopia. Proportionate stratified sampling was used to select HCP. Sharps injury during the last 12 months was an outcome variable whereas demographic characteristics, behavioral attributes, and job environment characteristics were independent variables. Data was collected from April to May 2016 using self-administered questionnaire; which was adapted from World Health Organization best practices for injections and related procedures toolkit. Bivariate and multivariate logistic regression analysis was carried out to identify sharps injury associated risk factors. Epi Info version 3.5.1 software package was used for data coding and entry whereas Statistical Package for Social Sciences (SPSS) version 20 software package was used for analysis. RESULTS: In total, 195 HCP participated with a response rate of 97.5%. The prevalence of sharps injury was 32.8%. Following adjustment for covariates, lack of in-service job training and previous exposure to sharps injury were statistically significant risk factors for sharps injury. HCP who had no in-service job training were 4.7 times more likely sustained sharps injury compared with those who had in-service job training (p < 0.001, OR = 4.7, 95% CI = 2.05–10.56). HCP who had previous exposure to sharps injury were 3.7 times more likely sustained sharps injury compared with those who were not exposed (p-value = 0.002, OR = 3.7, 95% CI = 1.62–8.27). CONCLUSIONS: This study revealed 32.8% or at least three out of ten HCP exposed to sharps injury. This was found statistically significant among HCP who had no in-service job training and who had previous exposure to sharps injury. Thus, training HCP perhaps increase their skill and curiosity to reduce exposure to sharps injury.
Africa ; Body Fluids ; Clinical Coding ; Cross-Sectional Studies ; Delivery of Health Care* ; Ethiopia* ; Health Personnel* ; Humans ; Incidence ; Logistic Models ; Needles ; Needlestick Injuries* ; Occupational Exposure* ; Practice Guidelines as Topic ; Prevalence ; Risk Factors ; Social Sciences ; World Health Organization ; Wounds, Stab

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The current condition of the workers' general health examination in South Korea: a retrospective study.

Young Joong KANG ; Jun Pyo MYONG ; Huisu EOM ; Bowha CHOI ; Jong Heon PARK ; Eun A L KIM

Annals of Occupational and Environmental Medicine.2017;29(1):6-. doi:10.1186/s40557-017-0157-0

BACKGROUND: Business owners in the Republic of Korea must take part in the workers' general health examination. However, there have been few formal analyses of the uptake of this examination by employees. In the present study, we examined the rates of participation in medical examinations according to age group, health insurance type, and enterprise size, and then compared these results with those of the national general health screening. Furthermore, we determined the distribution of patients with abnormal results for diabetes and hypertension, and outlined the significance and history of domestic health examinations. METHODS: We started by comparing participation rates extracted from the among health examination data of the National Health Insurance Service from 2006–2013 by sex, age, insurance type, and enterprise size of workplace health insurance beneficiaries (i.e., those whose insurance is provided by their workplace). In addition, we analyzed the prevalence rates of abnormal results for hypertension and diabetes, and explored the history and significance of health examinations in the Republic of Korea. RESULTS: The overall participation rate in the primary health examination in 2006 was 56%, and this increased to 72% in 2013. However, the rates of the secondary screening did not increase much. Among workplace policyholders (i.e., those whose insurance is provided by their workplace), the participation rates of workers in enterprises with less than 50 employees were lower than were those in enterprises with 50 or more employees. Notably, the rates and odds ratios of patients with abnormal results for diabetes and hypertension were relatively high, particularly among those working in smaller enterprises. CONCLUSIONS: Although the workers' general health examination has been replaced with the national general health screening, it remains necessary to ensure uniform health management services among all workers in the Republic of Korea. This can, in turn, promote occupational health and improve working conditions throughout the Republic of Korea.
Clothing ; Commerce ; Humans ; Hypertension ; Insurance ; Insurance, Health ; Korea* ; Mass Screening ; National Health Programs ; Occupational Health ; Odds Ratio ; Prevalence ; Republic of Korea ; Retrospective Studies*

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Pesticide metabolite and oxidative stress in male farmers exposed to pesticide.

Kang Myoung LEE ; Sang Yoo PARK ; Kyungsuk LEE ; Sung Soo OH ; Sang Baek KO

Annals of Occupational and Environmental Medicine.2017;29(1):5-. doi:10.1186/s40557-017-0162-3

BACKGROUND: The objective of this study was to measure malondialdehyde (MDA) and isoprostane which has been used as an index of lipid injury, 8-hydroxy-2′-deoxyguanosine (8-OHdG), which has been used as an index of DNA damage, and dialkyl-phosphate (DAP), which has been used to quantify pesticide exposure, and to investigate the relationship between pesticide exposure and oxidative stress. METHODS: This study was a cross-sectional study that evaluated 84 male farmers exposure to pesticide. In this study, 8-OHdG, isoprostane, and MDA were measured as oxidative stress indices, and dialkyl-phosphate (dimethylphosphate(DMP), diethylphosphate(DEP), dimethylthiophosphate(DMTP), and diethylthiophosphate (DETP)) excreted in the urine was also measured to evaluate pesticide exposure. A linear regression analysis was performed to investigate the relationship between pesticide metabolites, and oxidative stress biomarkers. RESULTS: A Correlation analysis was performed for pesticide exposure month (PEI), cumulative exposure index (CEI), and DAP as well as the concentration of the oxidative stress biomarkers. The PEM significantly and positively correlated to the levels of 8-OHdG, isoprostane, CEI, and DMP. CEI showed a correlation to 8-OHdG and PEM. DMP, DEP, and DETP showed a positive correlation to 8-OHdG, isoprostane, and MDA. A correlation analysis was adjusted some demographic characteristics, such as age, smoking, drinking, and exercise to determine the relationship between pesticide exposure and oxidative stress. The 8-OHdG, isoprostane, and MDA levels were significantly related to the DMP (ß = 0.320), DEP (ß = 0.390), and DETP (ß = 0.082); DMP (ß = 0.396), DEP (ß = 0.508), and DETP (ß = 0.504); and DMP (ß = 0.432), DEP (ß = 0.508), and DETP (ß = 0.329) levels, respectively. CONCLUSIONS: The concentration between oxidative stress biomarkers and the pesticide metabolite were a positive correlation. Indicators of oxidative stress was associated with a pesticide metabolite DMP, DEP, and DETP. Therefore, Pesticide exposure and oxidative stress were relevant.
Biomarkers ; Cross-Sectional Studies ; DNA Damage ; Drinking ; Farmers* ; Humans ; Isoprostanes ; Linear Models ; Male* ; Malondialdehyde ; Oxidative Stress* ; Smoke ; Smoking

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Practice status of specialized agencies for occupational health management of small- to medium-size enterprises and the factors improving their performance: a cross-sectional survey study.

Saerom LEE ; Jun Pyo MYONG ; Eun A KIM ; Huisu EOM ; Bowha CHOI ; Young Joong KANG

Annals of Occupational and Environmental Medicine.2017;29(1):4-. doi:10.1186/s40557-017-0161-4

BACKGROUND: We examined the current status of specialized agencies for occupational health management (SAs) and their workforce. Furthermore, we aimed to clarify the current practice status of SA healthcare professionals and factors that influence their performance. METHODS: To examine the current SA workforce, we analyzed data from the 2014 Survey of Current Status of SA and their Workforce from the Ministry of Employment and Labor (MOEL). Furthermore, we mailed out an original questionnaire to SA professionals to determine their current health management status and factors that affect their performance. Data from the respondents (N = 384) were analyzed. RESULTS: In 2014, the workforce performing health management in SAs comprised 232 physicians, 507 nurses, and 312 occupational hygienists, with no significant regional differences in the distribution of physicians and nurses. According to the findings of the questionnaire, the average daily number of worker consultations by physicians and nurses was 22.8, while the average time taken for health management ranged from 74.3 to 104.3 min, depending on the size of the firm. Most of the respondents (41.5%) answered that they were following-up on more than 80% of individuals with illnesses. Among health management tasks, performance scores of “consultations for general diseases” and “consultations for lifestyle habits” were relatively high, whereas health promotion activities at workplaces were relatively low. There was a significant correlation between the utilization of general and special health examination results and task performance. CONCLUSION: Among health management tasks, follow-up management of individuals with illnesses and consultations for disease/lifestyle habits were relatively well performed, whereas health promotion activities at workplaces were not performed well. Among factors that positively influenced SA performance at workplaces, only the utilization of health examination results had significant effects. Therefore, to accomplish health management goals and perform effective health management at workplaces, there is a need to establish a comprehensive system of occupational health service outsourcing integrating health examinations and health management services. Furthermore, the current task system, which focuses on follow-up management, should be expanded to incorporate preventive and health promotion functions—the fundamental functions of occupational health services (OHS).
Cross-Sectional Studies* ; Delivery of Health Care ; Employment ; Follow-Up Studies ; Health Promotion ; Life Style ; Occupational Health Services ; Occupational Health* ; Outsourced Services ; Postal Service ; Referral and Consultation ; Surveys and Questionnaires ; Task Performance and Analysis ; Work Performance

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Participation inequality in the National General Health Examination based on enterprise size.

Young Joong KANG ; Jong Heun PARK ; Huisu EOM ; Bohwa CHOI ; Seyoung LEE ; Ji Won LEE ; Jun Pyo MYONG

Annals of Occupational and Environmental Medicine.2017;29(1):3-. doi:10.1186/s40557-017-0159-y

BACKGROUND: Health examinations are performed so that diseases can be identified and treated earlier. Several studies have evaluated the determinants of participation in health examinations including cancer screening, but few have evaluated the relationship between the size of the enterprise and their participation in Workers' General Health Examinations (WGHE). The aim of the present study was to estimate the association of WGHE participation with the size of the enterprise and the type of policyholder. METHODS: The eligible population from 2006 through 2013 was extracted from the National Health Insurance Service (NHIS) database. The population size ranged from 14–17 million. After adjustment for age and gender, multiple logistic regression analysis was performed to estimate the odds ratios of participating in the WGHE (by age group) based on the type of policyholder (reference: public officers) and the size of the enterprise (reference: enterprise size ≥300 employees), respectively. RESULTS: Workers employed at enterprises with <50 persons were less likely to participate in WGHEs than those employed at enterprises with ≥300 persons. After policyholders were stratified by type (non-office workers vs. public officers), a disparity in the WGHE participation rate was found between the different types of policyholders at enterprises with <50 employees (reference: those employed at enterprises with ≥300 employees); the odds ratios for subjects in their 40s and 50s were 0.2–0.3 for non-office workers vs. 0.8–2.0 for public officers. CONCLUSION: Workplace policyholders at small enterprises comprised a vulnerable group less likely to participate in WGHEs. Efforts should be made to raise the WGHE participation rate among the vulnerable employees belonging to small enterprises, as well as among their dependents.
Early Detection of Cancer ; Healthcare Disparities ; Humans ; Logistic Models ; Mass Screening ; National Health Programs ; Odds Ratio ; Population Density ; Socioeconomic Factors*

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Effectiveness of workers' general health examination in Korea by health examination period and compliance: retrospective cohort study using nationwide data.

Huisu EOM ; Jun Pyo MYONG ; Eun A KIM ; Bohwa CHOI ; Soon Woo PARK ; Young Joong KANG

Annals of Occupational and Environmental Medicine.2017;29(1):2-. doi:10.1186/s40557-017-0160-5

BACKGROUND: Our study evaluated the effectiveness of the Workers' General Health Examination by health examination period and compliance. METHODS: A retrospective cohort of the health examination participants in 2006 (baseline year: N = 6,527,045) was used. We identified newly occurring cardio-cerebrovascular disease over 7 years (from 2007 to 2013). After stratification by age, sex, and national health insurance type, we identified 7 years' cumulative incidence of cardio-cerebrovascular disease by health examination compliance and estimated its relative risk by health examination period and compliance. RESULTS: The compliant group presented a lower cumulative incidence of cardio-cerebrovascular disease than the non-compliant group; this result was consistent across sex, working age (40s and 50s), and workplace policyholder. Relative risk of cardio-cerebrovascular disease by health examination period (1 and 2 years) showed statistically significant results in ischemic heart disease for male participants. Of men in their 40s, office workers (over a 2-year period) presented statistically higher relative risk of ischemic heart disease than non-office workers (over a 1-year period: 1.03; 95% confidence interval, 1.02–1.03). However, there were no consistent results in ischemic cerebrovascular disease and hemorrhagic cerebrovascular disease for men or cardio-cerebrovascular disease for women. CONCLUSION: A 1-year period of Workers' General Health Examinations in non-office workers had a more significant prevention effect on ischemic heart disease than a 2-year period in office workers among working age (40s–50s) men. It is, however, necessary to consider that prevention of cardio-cerebrovascular disease can be partially explained by their occupational characteristics rather than by health examination period.
Cerebrovascular Disorders ; Cohort Studies* ; Compliance* ; Female ; Humans ; Incidence ; Korea* ; Male ; Myocardial Ischemia ; National Health Programs ; Retrospective Studies*

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The First Evaluation of Workers' General Health Examination in Korea.

Eun A KIM

Annals of Occupational and Environmental Medicine.2017;29(1):1-. doi:10.1186/s40557-017-0158-z

No abstract available.
Korea*

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