Association between birth weight and risk of abdominal obesity in children and adolescents: a school-based epidemiology survey in China.

Background: Abdominal obesity is becoming an increasingly serious public health challenge in children and adolescents, there remains controversial opinions on birth weight and risk of childhood abdominal obesity. This study aims to assess the association between birth weight and the risk of abdominal obesity in childhood, as well as to compare the associations among different sex and age groups.

Methods: A total number of 30,486 (15,869 boys and 14,617 girls) participants aged 6-17 years old were included in this study.