Validity and reproducibility of self-reported working hours among Japanese male employees.
Validity and reproducibility of self-reported working hours among Japanese male employees.
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DOI：
10.1539/joh.15-0260-oa
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发表时间：
2016-07-22
影响因子：
3
通讯作者：
Japan Epidemiology Collaboration on Occupational Health Study Group
中科院分区：
文献类型：
--
作者：
Imai T;Kuwahara K;Miyamoto T;Okazaki H;Nishihara A;Kabe I;Mizoue T;Dohi S;Japan Epidemiology Collaboration on Occupational Health Study Group
长时间工作对健康存在潜在危害。尽管不同时间范围内工作时间的自我报告已被用于流行病学研究，但其有效性尚不清楚。本研究的目的是检验日本男性员工自我报告工作时间的有效性和可重复性。 参加者为日本4家大型企业的164名男性员工。为了验证有效性，计算了第二次调查中自我报告的工作时间与公司记录的工作时间之间的斯皮尔曼相关性，计算了以下四个时间范围：每日工作时间、最近一个月的每月加班时间、最近 3 个月的平均加班时间以及最近 12 个月内长时间工作月（≥45 小时/月）的频率。为了重现性，我们计算了四个时间范围内第一次（2013 年 9 月）和第二次调查（2013 年 12 月）之间的组内相关性。 在每天、每月、每三个月和每年时间段内，自我报告的工作时间与基于公司记录的工作时间之间的 Spearman 相关性分别为 0.74、0.81、0.85 和 0.89。两次问卷调查在各自时间范围内自我报告工作时间的组内相关性分别为 0.63、0.66、0.73 和 0.87。 目前对日本男性员工的研究结果表明，自我报告的工作时间在所有四个时间范围内的有效性都很高，而再现性为中等到高。
Working long hours is a potential health hazard. Although self-reporting of working hours in various time frames has been used in epidemiologic studies, its validity is unclear. The objective of this study was to examine the validity and reproducibility of self-reported working hours among Japanese male employees. The participants were 164 male employees of four large-scale companies in Japan. For validity, the Spearman correlation between self-reported working hours in the second survey and the working hours recorded by the company was calculated for the following four time frames: daily working hours, monthly overtime working hours in the last month, average overtime working hours in the last 3 months, and the frequency of long working months (≥45 h/month) within the last 12 months. For reproducibility, the intraclass correlation between the first (September 2013) and second surveys (December 2013) was calculated for each of the four time frames. The Spearman correlations between self-reported working hours and those based on company records were 0.74, 0.81, 0.85, and 0.89 for daily, monthly, 3-monthly, and yearly time periods, respectively. The intraclass correlations for self-reported working hours between the two questionnaire surveys were 0.63, 0.66, 0.73, and 0.87 for the respective time frames. The results of the present study among Japanese male employees suggest that the validity of self-reported working hours is high for all four time frames, whereas the reproducibility is moderate to high.