Résumé :
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[BDSP. Notice produite par INIST R0xQCnnN. Diffusion soumise à autorisation]. The authors investigated the role of self-reported life satisfaction in mortality with a prospective cohort study (1976-1995). A nationwide sample of healthy adults (18-64 years, n=22,461) from the Finnish Twin Cohort responded to a questionnaire about life satisfaction and known predictors of mortality in 1975. A summary score for life satisfaction (LS), defined as interest in life, happiness, loneliness, and general ease of living (scale range, 4-20), was determined and used as a three-category variable : the satisfied (LS, 4-6) (21%), the intermediate group (LS, 7-11) (65%), and the dissatisfied (LS, 12-20) (14%). Mortality data were analyzed with Cox regression. Dissatisfaction was linearly associated with increased mortality. The age-adjusted hazard ratios of all-cause, disease, or injury mortality among dissatisfied versus satisfied men were 2.11 (95% confidence interval (Cl) : 1.68,2.64), 1.83 (95% Cl : 1.40,2.39), and 3.01 (95% CI : 1.94,4.69), respectively. Adjusting for marital status, social class, smoking, alcohol use, and physical activity diminished these risks to 1.49 (95% Cl : 1.16,1.92), 1.35 (95% Cl : 1.01,1.82), and 1.93 (95% Cl : 1.19,3.12), respectively. Dissatisfaction was associated with increased disease mortality, particularly in men with heavy alcohol use (hazard ratio=3.76,95% CI : 1.61,8.80). Women did not show similar associations between life satisfaction and mortality. (...)
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