Résumé :
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[BDSP. Notice produite par INIST-CNRS dB8R0xLS. Diffusion soumise à autorisation]. The authors examined associations between leisure-time and occupational physical activity and common mental disorder (CMD), defined as anxiety and depression, using data from a cohort of middle-aged men in Caerphilly, South Wales, United Kingdom, who were followed for 5 years (1989-1993) and 10 years (1993-1997). CMD was measured using the General Health Questionnaire. Total leisure-time activity and percentage of time spent in heavy-intensity activity were estimated from self-reports (Minnesota Leisure Time Physical Activity Questionnaire). Men were classified into four classes of occupational activity. Among 1,158 men with complete data, those who participated in any heavy-intensity leisure-time activity had reduced odds of CMD 5 years later (below median vs. none : adjusted odds ratio (ORadj)=0.61,95% confidence interval (Cl) : 0.40,0.93) ; median or above vs. none : ORadj=0.54,95% Cl : 0.35,0.83). Analyses using multiple imputation to deal with missing data found weaker evidence for an association (ORadj=0.79 (95% Cl : 0.54,1.15) and ORadj=0.73 (95% Cl : 0.49,1.09), respectively). There was little evidence that men in the most physically demanding jobs had reduced odds of CMD after 5 years, and there was no association between physical activity and CMD 10 years later. Among these men, heavy-intensity leisure-time physical activity was associated with a small reduction in CMD over 5 years.
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