Résumé :
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[BDSP. Notice produite par INIST-CNRS rkBqR0xp. Diffusion soumise à autorisation]. To identify student-and school-level sociodemographic characteristics associated with overweight and obesity, the authors conducted cross-sectional analyses of data from 624,204 public school children (kindergarten through 12th grade) who took part in the 2007-2008 New York City Fitnessgram Program. The overall prevalence of obesity was 20.3%, and the prevalence of overweight was 17.6%. In multivariate models, the odds of being obese as compared with normal weight were higher for boys versus girls (odds ratio (OR)=1.39,95% confidence interval (CI) : 1.36,1.42), for black (OR=1.11,95% CI : 1.07,1.15) and Hispanic (OR=1.48,95% CI : 1.43,1.53) children as compared with white children, for children receiving reduced-price (OR=1.17,95% CI : 1.13,1.21) or free (OR=1.12,95% CI : 1.09,1.15) school lunches as compared with those paying full price, and for US-born students (OR=1.54,95% CI : 1.50,1.58) as compared with foreign-born students. After adjustment for individual-level factors, obesity was associated with the percentage of students who were US-born (across interquartile range (75th percentile vs. 25th), OR=1.10,95% CI : 1.07,1.14) and the percentage of students who received free or reduced-price lunches (across interquartile range, OR=1.13,95% CI : 1.10,1.18). The authors conclude that individual sociodemographic characteristics and school-level sociodemographic composition are associated with obesity among New York City public school students.
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