[Habitual physical activity and responsibility at work as risk factors of fatal coronary heart disease (author's transl)].

Mortality in 5 and 10 years for all causes in over 172,000 men classified for habitual physical activity at work was not substancially different between subjects classifed as sedentary, moderate and heavy workers. Mortality for coronary heart disease (CHD), for the same length of observation was statistically higher in sedentary and moderate than in heavy workers (ratio 1.7/1). Bivariate analysis considering both physical activity and responsibility at work, limited to 99,000 men aged 40-59 at entry for a period of 5 years having as end-point CHD, indicated that mortality is higher for higher levels of responsability. Partial correlation coefficients between physical activity and working responsibility on one side, and mortality for CHD on the other showed significant levels (-0.72 and 0.71 respectively) when considering eight combination of different activity and responsibility levels.