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Annals of Occupational and Environmental Medicine

Jaeyoup Jung, Gyuree Kim, Kyusung Kim, Domyung Paek, Sung-Il Cho
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...
2017: Annals of Occupational and Environmental Medicine
Seng-Ho Song, Seong-Kyu Kang, Won-Jun Choi, Kyeong Min Kwak, Dong-Hoon Lee, Dyuk-Yoon Kang, Sang-Ha Lee
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...
2017: Annals of Occupational and Environmental Medicine
Ju-Hyun Nam, Myeong-Seob Lim, Hyun-Kyeong Choi, Jae-Yeop Kim, Sung-Kyeong Kim, Sung-Soo Oh, Sang-Baek Koh, Hee-Tae Kang
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...
2017: Annals of Occupational and Environmental Medicine
Hweemin Chung, Kanwoo Youn, Kyuyeon Kim, Kyunggeun Park
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...
2017: Annals of Occupational and Environmental Medicine
Jin-Soo Park, Seyoung Kim, Minkyu Park, Yeji Kim, Hyeeun Lee, Hyunrim Choi, Sinye Lim
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...
2017: Annals of Occupational and Environmental Medicine
Kyung-Jae Lee, Sung Won Jung, Hee Sung Lee, Guang Hwi Kim, Jae Gwang Lee, June-Hee Lee, Joo Ja Kim
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...
2017: Annals of Occupational and Environmental Medicine
Shin Uk Kang, Byeong Jin Ye, ByoungGwon Kim, Jung Il Kim, Jung Woo Kim
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...
2017: Annals of Occupational and Environmental Medicine
Heeyun Kim, Sang Gil Lee, Jeongbae Rhie
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...
2017: Annals of Occupational and Environmental Medicine
Heechan Kim, Ho-Jang Kwon, Jeongbae Rhie, Sinye Lim, Yun-Dan Kang, Sang-Yong Eom, Hyungryul Lim, Jun-Pyo Myong, Sangchul Roh
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...
2017: Annals of Occupational and Environmental Medicine
Seyoung Lee, Hyoung-Ryoul Kim, Junsu Byun, Taewon Jang
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...
2017: Annals of Occupational and Environmental Medicine
Namwaka Mungandi, Mpundu Makasa, Patrick Musonda
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...
2017: Annals of Occupational and Environmental Medicine
Hyun Chan An, Joo Hyun Sung, Jiho Lee, Chang Sun Sim, Sang Hoon Kim, Yangho Kim
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...
2017: Annals of Occupational and Environmental Medicine
Hee Sung Lee, Guang Hwi Kim, Sung Won Jung, June-Hee Lee, Kyung-Jae Lee, Joo Ja Kim
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...
2017: Annals of Occupational and Environmental Medicine
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
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...
2017: Annals of Occupational and Environmental Medicine
Chan-Seok Moon
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...
2017: Annals of Occupational and Environmental Medicine
Hyun-Woo Choi, Young-Ki Kim, Dong-Mug Kang, Jong-Eun Kim, Bo-Young Jang
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...
2017: Annals of Occupational and Environmental Medicine
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
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...
2017: Annals of Occupational and Environmental Medicine
Eun Kye Kang, Gu Hyeok Kang, Jun Young Uhm, Young Gon Choi, Soo Young Kim, Seong Sil Chang, Hyoung-Ryoul Kim
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...
2017: Annals of Occupational and Environmental Medicine
Hyeong-Min Lim, WonYang Kang, Won-Ju Park, Keun-Ho Jang, Ji-Sung Ann, Jai-Dong Moon
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...
2017: Annals of Occupational and Environmental Medicine
Seong-Hoon Kang, Jin-Ho Song, Tae Hwan Koh, Do Myung Paek, Jong-Tae Park, HoSun Chun
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...
2017: Annals of Occupational and Environmental Medicine
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