Recovery from Mental Ill Health in an Occupational Setting : A Cohort Study in Japan

概要

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Objectives: The purpose of this study is to clarify the degree of recovery from mental ill health in occupational settings and the nature of perceived job stress associated with recovery. Methods: A 1-year cohort study was carried out in 287 of 763 workers who scored 8 or more on the General Health Questionnaire(GHQ-30), and the proportion recovering during the year was compared according to the presence of individual perceived job stress items. To control confounding factors, multiple logistic analysis was used. Results: Recovery from mental ill health was observed in 48.7% after the first 6 months and in 66.1% after 1 year. During the first 6-month period, no identified job stress item was associated with recovery. During the second 6-month period, however, the odds ratio(95% confidence interval)between recovery and the absence of perceived job stress was 4.2(1.3-13.1)for "Too much responsibility", even after controlling for sex, age, the degree of family life satisfaction, physical health stage, and the initial GHQ score. Conclusion: Relief from excessive responsibility might promote recovery in mentally ill workers.