Feeling Refreshed by Sleep Can Predict Psychological Wellbeing Assessed Using the General Health Questionnaire in Male Workers: A 3-Year Follow-Up Study

Prediction of psychological wellbeing based on several important predictors was conducted for ensuring maintenance of good mental health. A 3-year follow-up study to determine psychological well-being was conducted in 969 Japanese male workers. Age, body mass index, present history of medication and four lifestyle factors were used for the analysis. A logistic regression analysis revealed that the odds ratio (95% confidence interval) for obtaining a score of ≥4 in the General Health Questionnaire-12-item version, among the subjects who felt refreshed by sleep was 0.559 (0.415-0.753). None of the other factors showed any statistically significant association. Feeling refreshed by sleep was identified as a predictor of maintained psychological wellbeing in this 3-year follow-up study.