| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
We conducted the longitudinal study for evaluating the relationships between the duration of the long working hours and workers health at electronic devices manufacturing company. The risks of sleep disturbance or insomnia was elevated in workers who were engaged in the long working hours for more than 3 month. However significant differences were not observed among the groups of 4-6 months, 7-12 months and more than 13months. On the other side, the risks of physical symptoms including undefined complains and fatigue were elevated according to the prolonging of the period of the long working hours without any thresholds. Then we conducted the intervention for the prevention the symptoms. We found that health advices based on the results of screening tests for depression and burn out syndrome were effective. In addition the highest impact was the order the reduction the working hours by employers.
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