Résumé :
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[BDSP. Notice produite par INIST USR0x7dV. Diffusion soumise à autorisation]. Context The mean body weight of US adults increased by 3.6 kg (7.6 Ib) during the past 15 years, but few studies exist that examine the impact of such weight change on functional health status. Objective To investigate, prospectively, the association between weight change and health-related quality of life in women. Design and Setting Nurses'Health Study, a 4-year prospective observational study from 1992 to 1996, using the Medical Outcomes Study Short-Form 36 Health Status Survey (a self-administered 36-item questionnaire) to measure quality of life. Participants A cohort of 40098 women (from 46-71 years old in 1992) grouped according to 3 patterns of weight change over the 4-year period : women whose weight remained within 2.25 kg (5 Ib) of their baseline weight, women who lost 2.25 kg (5 Ib) or more, and women who gained 2.25 kg (5 Ib) or more. Main Outcome Measures Change in scores on 7 health-related quality-of-life dimensions : physical functioning, vitality, bodily pain, limitations in role functioning due to emotional or physical problems, social functioning, and mental health, measured by the Short-Form 36 Health Status Survey. Results A total of 1 5 602 women (39%) maintained their weight, 15 160 (38%) gained between 2.25 and 9.0 kg (5-20 Ib), and 6667 (17%) lost between 2.25 and 9.0 kg (5-20 Ib). Weight gain was associated with decreased physical function and vitality, and increased bodily pain regardless of baseline weight. (...)
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