The Prevalence of Obesity in Children Aged 4–6 Years of Shanghai and the Effect of Early Family Care

The part results of a CCHH (a retrospective cross-sectional survey conducted in Shanghai) can be used to study the prevalence of obesity in children aged 4–6 of Shanghai and the effect of early family care. The survey results showed that the overall overweight and obesity rates of children aged 4–6 years of Shanghai were 18.3% and 15.6%, respectively. The overweight and obesity rates in boys aged 4–6 years were significantly higher than those in girls aged 4–6 years (P < 0.05). The results of a logistic regression revealed that in early care, father’s smoking may have relevance with overweight and obesity of children during pregnancy and after birth and those children who enter preschool later are more likely to be overweight. Our research shows that the preschool children in Shanghai have a higher prevalence of overweight and obesity. Father’s smoking and children entering preschool later may have a relevance with overweight and obesity in children aged 4–6 years of Shanghai.