- Correlates of Self-rated Fatigue in Korean Employees.
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Sei Jin Chang, Sang Baek Koh, Myung Gun Kang, Sook Jung Hyun, Bong Suk Cha, Jong Ku Park, Jun Ho Park, Seong Ah Kim, Dong Mug Kang, Seong Sil Chang, Kyung Jae Lee, Eun Hee Ha, Mina Ha, Jong Min Woo, Jung Jin Cho, Hyeong Su Kim, Jung Sun Park
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J Prev Med Public Health. 2005;38(1):71-81.
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- OBJECTIVE
To elucidate the correlates of self-rated fatigue in Korean employees. METHODS: The data for 10, 176 (men, 7, 984; women, 2, 192; mean age, 34.2; SD: 8.8) employees recruited from a nationwide sample were examined. A structured questionnaire was used to measure the participants' fatigue, sociodemographics (sex, age, education, and marital status), job-related characteristics (work duration, grade at work, work hours, shiftwork, employment type, and magnitude of workplace), and health-related habits (smoking, drinking, coffee intake, and exercise). Two types of measurement for fatigue were used to evaluate the magnitude of fatigue: self-rated question and a standardized measurement tool (Multidimensional Fatigue Scale: MFS). RESULTS: According to the self-rated fatigue, 32% of employees reported that they felt fatigue for the past two weeks, and 9.6% of males and 8.7% of females had experienced excessive fatigue (6 months or more). Hierarchical multiple regression analysis showed that fatigue measured by MFS was more common in women, younger, college or more graduated, single, and employees who do not regularly exercise. Fatigue was also associated with long work hours, and the size of the workplace (< 1, 000 employees). CONCLUSIONS: These results suggest that fatigue has been considered as a common complaint, and that it is affected by job-related factors like work hours and the workplace size as well as sociodemographics or health-related behaviors. Further research is needed to clarify the effects of fatigue on adverse health outcomes, work performance, work disability, sick absence and medical utilization, and to examine the relationship of job characteristics (e.g.: work demand, decision latitude) to fatigue.
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- Epidemiology of Psychosocial Distress in Korean Employees.
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Sei Jin Chang, Sang Baek Koh, Myung Gun Kang, Bong Suk Cha, Jong Ku Park, Sook Jung Hyun, Jun Ho Park, Seong Ah Kim, Dong Mug Kang, Seong Sil Chang, Kyung Jae Lee, Eun Hee Ha, Mina Ha, Jong Min Woo, Jung Jin Cho, Hyeong Su Kim, Jung Sun Park
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J Prev Med Public Health. 2005;38(1):25-37.
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To estimate the magnitude of psychosocial distress and examine eligible factors associated with the development of psychosocial distress in Korean employees, using a nationwide sample. METHODS: A total of 6, 977 workers were recruited from 245 companies. A structured questionnaire was used to assess sociodemographics, health-related behaviors, job characteristics, social support at work, personality traits (locus of control, type A behavior pattern), self-esteem, and psychosocial distress. RESULTS: The results showed that 23 % of workers were categorized as high stress, 73% as moderate, and 5% as normal. Hierarchical multiple regression analysis showed that psychosocial distress was more common in younger workers, both male and female. Regular exercise was negatively associated with increase of psychosocial distress. In job characteristics, as expected, low decision latitude, high job insecurity, and low social support at work were related to high psychosocial distress. Personality traits such as locus of control and type A behavior pattern, and self-esteem were more powerful predictors of psychosocial distress than general characteristics, health-related behavior, and job characteristics. There were some gender differences. While men who are less educated and single (unmarried, divorced, and separated) experienced higher levels of psychosocial distress than those who are educated and married, women who feel high job demand experienced higher levels of psychosocial distress than those who feel low job demand. CONCLUSIONS: The proportion of the high stress group was higher than expected, and psychosocial factors like social support and personality characteristics (e. g. locus of control, type A behavior pattern and self-esteem) were more significant factors for psychosocial distress than other variables. This finding suggests that some psychosocial factors, especially inadequate social support, low self-esteem and lack of internal locus of control for the development of psychosocial distress, will also operate as an intervention strategy in the worksite stress reduction program. It is strongly required that worksite stress reduction programs should be established in at both occupational and level as well as in individual levels.
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- Maternal Working Conditions on Adverse Pregnancy Outcomes: A Prospective Cohort Study.
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Jung Jin Cho, Ji Yong Kim, Jin Joo Chung, Kyung Sim Ko
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Korean J Prev Med. 2002;35(3):197-204.
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To evaluate the association between working conditions and adverse pregnancy outcomes in Korea. METHODS: We obtained data on health history, lifestyle, housework and working conditions, such as shift work, hours standing, working time, job demand, lifting at work and at home, between August and September 2000, from self-reported questionnaires. A group of 344, occupationally active, pregnant women from 51 industries were studied. Of the women studied, 328 women were further interviewed by telephone between November 2000 and September 2001. Result : Compared with daytime work, shift work increased the risk for preterm birth (an adjusted risk ratio of 2.74, 95% CI=1.02-2.62) and low birth weight (an adjusted risk ratio of 2.74, 95% CI=1.02-2.62). A significantly increased risk was found for prolonged standing, with an adjusted risk ratio of preterm births of 6.80 (95% CI=2.01-23.0). There were no significant differences in the incidence of spontaneous abortion between the occupational working conditions, with the exception of a previous history of spontaneous abortion. CONCLUSION: These findings suggest that maternal working conditions, such as shift work and prolonged standing, contribute significantly to preterm birth and low birth weight.
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