Journal
INTERNATIONAL JOURNAL OF OBESITY
Volume 28, Issue 11, Pages 1494-1502Publisher
SPRINGERNATURE
DOI: 10.1038/sj.ijo.0802756
Keywords
childhood obesity; health-related behaviours; multivariate analyses; risk factors
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OBJECTIVES: To identify the major risk factors of overweight and obesity in prepubertal children. DESIGN: Cross-sectional study. SETTING: In all, 32 primary schools in Kiel ( 248 000 inhabitants), northwest Germany. SUBJECTS: A total of 2631 5 - 7- y-old German children and their parents. MAIN OUTCOME MEASURES: Weight status, socio-economic status (SES), parental overweight, dietary intake, activity, inactivity and further determinants ( birth weight, breast feeding, nutritional status of siblings) of the children. RESULTS: The prevalence of overweight (greater than or equal to90th BMI percentile of reference) was 9.2% in boys and 11.2% in girls, respectively. Considered univariately, family-, environment- and development-related determinants showed some relations to overweight and obesity. In multivariate analyses parental overweight, a low SES as well as a high birth weight were the strongest independent risk factors of overweight and obesity in children. Additionally, there were sex-specific risk factors: parental smoking and single households were risk factors in boys, whereas a low activity was associated with obesity in girls. Birth weight was associated with obesity, but not with overweight. The prevalence of obesity reached 29.2% in boys and 33.4% in girls with all the three main risk factors. CONCLUSIONS: Overweight families of low SES have the highest risk of overweight and obese children. Future prevention programmes must also take into account sex-specific risk factors.
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