Higher Birthweight and Maternal Pre-pregnancy BMI Persist with Obesity Association at Age 9 in High Risk Latino Children

Abstract

Childhood obesity is increasing especially in Latinos and early intervention is essential to prevent later obesity complications. Latino children (n = 201) recruited at two San Francisco hospitals were assessed at birth including infant anthropometrics and feeding practices and followed to age 9 with annual anthropometric assessments. We evaluated the relationship between perinatal risk factors and obesity at age 9 and chronic obesity (obesity at both 5 and 9 years). Higher birthweight [odds ratio (OR) 2.48, 95% confidence interval (CI) 1.06–5.81] and maternal pre-pregnancy body mass index (BMI) (OR 1.09, 95% CI 1.00–1.18) were associated with increased risk for obesity at 9 years. Higher maternal pre-pregnancy BMI (OR 1.10, 95% CI 1.01–1.20) was associated with chronic obesity. Additionally, prenatal depression symptoms were protective (OR 0.33, 95% CI 0.11–0.94) against chronic obesity. We found no association between maternal age and education, exclusive breastfeeding at 4–6 weeks, rapid infant weight gain, and obesity or chronic obesity. Perinatal risk factors for obesity including higher birthweight and maternal pre-pregnancy BMI persisted until age 9, whereas, other variables significant at age 5 in our cohort and other populations including exclusive breastfeeding and rapid infant weight gain were no longer associated with increased risk.

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