Song Jun-Taek, Lee Goeun, Kwon Jongho, Park Jung-Woo, Choi Hyunrim, Lim Sinye
Department of Occupational and Environmental Medicine, Kyung Hee University Hospital, Seoul 130-872, Republic of Korea.
Ann Occup Environ Med. 2014 Jan 20;26(1):2. doi: 10.1186/2052-4374-26-2.
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.
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.
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.
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.
本研究旨在利用代表韩国城市地区家庭的韩国劳动与收入面板研究（KLIPS）的数据，确定全职受薪工人每周的工作小时数，并确定每周工作小时数与自我评定健康水平之间的关联。
我们使用了2008年进行的第11次KLIPS的数据。本研究的对象是3699名年龄在25至64岁之间的全职受薪工人。考虑到社会人口特征、工作环境和健康相关行为，分析了每周工作小时数与自我评定健康之间的关联。
在这些工人中，29.7%的人每周工作少于40小时；39.7%的人工作40至52小时以上；19.7%的人工作52至60小时以上；10.9%的人每周工作超过60小时。在控制了社会人口变量、工作环境相关变量和健康相关行为变量后，当以每周工作少于40小时的组为参照时，工作40小时以上至52小时的组自我评定健康状况较差的优势比（OR）计算为1.06（95%置信区间（CI），0.89 - 1.27）。工作超过60小时的组的OR为1.42（95%CI，1.10 - 1.83），工作52小时以上至60小时的组的OR为1.07（95%CI，0.86 - 1.33）。按性别和任期分层后，发现女性工人群体和任期超过1年的群体的OR显著高于其他群体。
本研究表明，每周工作超过60小时的工人自我评定健康状况较差的风险显著高于每周工作少于40小时的工人。这种影响在女性工人群体和任期超过1年的群体中更为明显。未来，可能需要进行纵向研究以确定韩国工人长时间工作与各种健康影响之间的关联。
