Résumé :
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[BDSP. Notice produite par INIST qQR0x0VL. Diffusion soumise à autorisation]. Background The relationship between relative body weight and mortality has been well studied in Western populations and remains controversial. Little is known about the weight-mortality association in less well fed people in developing countries. Methods A cohort of 18 244 Chinese men aged 45-64 years in Shanghai, China enrolled in a prospective study of diet and cancer during January 1986 through September 1989. At recruitment, height and usual body weight were collected through interview. An active, annual follow-up of the cohort was conducted for cancer and death. Proportional hazards regression method was used to examine the relation between body mass index (BMI, weight in kg/height in m2) and overall and cause-specific mortality. Results By 28 February 1995,1198 deaths (498 from cancer, 422 from cardio-and cerebrovascular disease, and 278 from other causes) had been identified. We found a U-shaped relation between BMI and total mortality among lifelong non-smokers. Compared with non-smokers with BMI 21.0-=26 after adjustment for age, level of education, and alcohol drinking. The elevated risk of death in men with BMI >=26 was largely due to fatal cardio-and cerebro-vascular diseases. (...)
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