Camille A Robinson1, Alison K Cohen2, David H Rehkopf3, Julianna Deardorff4, Lorrene Ritchie5, Ruvani T Jayaweera2, Jeremy R Coyle6, Barbara Abrams7. 1. University of California -San Francisco, School of Medicine, San Francisco, CA, USA; University of California -Berkeley, School of Public Health, Division of Epidemiology, Berkeley, CA, USA. 2. University of California -Berkeley, School of Public Health, Division of Epidemiology, Berkeley, CA, USA. 3. Stanford University School of Medicine, Division of General Medical Disciplines, Stanford, CA, USA. 4. University of California -Berkeley, School of Public Health, Division of Community Health and Human Development, Berkeley, CA, USA. 5. University of California -Berkeley, Atkins Center for Weight and Health, Berkeley, CA, USA. 6. University of California -Berkeley, School of Public Health, Division of Biostatistics, Berkeley, CA, USA. 7. University of California -Berkeley, School of Public Health, Division of Epidemiology, Berkeley, CA, USA; University of California -Berkeley, School of Public Health, Division of Community Health and Human Development, Berkeley, CA, USA. Electronic address: babrams@berkeley.edu.
Abstract
OBJECTIVES: High maternal weight before and during pregnancy contributes to child obesity. To assess the additional role of weight change after delivery, we examined associations between pre- and post-pregnancy weight changes and preschooler overweight. SAMPLE: 4359 children from the Children and Young Adults of the 1979 National Longitudinal Survey of Youth (NLSY) born to 2816 NLSY mothers between 1979 and 2006 and followed to age 4-5years old. EXPOSURES: gestational weight gain (GWG) and post-delivery maternal weight change (PDWC). OUTCOME: child overweight (body mass index (BMI) ≥85th percentile). RESULTS: Adjusted models suggested that both increased GWG (OR: 1.08 per 5kg GWG, 95% CI: 1.01, 1.16) and excessive GWG (OR: 1.29 versus adequate GWG, 95% CI: 1.06, 1.56) were associated with preschooler overweight. Maternal weight change after delivery was also independently associated with child overweight (OR: 1.12 per 5kg PDWC, 95% CI: 1.04, 1.21). Associations were stronger among children with overweight or obese mothers. CONCLUSIONS: Increased maternal weight gain both during and after pregnancy predicted overweight in preschool children. Our results suggest that healthy post-pregnancy weight may join normal pre-pregnancy BMI and adequate GWG as a potentially modifiable risk factor for child overweight.
OBJECTIVES: High maternal weight before and during pregnancy contributes to childobesity. To assess the additional role of weight change after delivery, we examined associations between pre- and post-pregnancy weight changes and preschooler overweight. SAMPLE: 4359 children from the Children and Young Adults of the 1979 National Longitudinal Survey of Youth (NLSY) born to 2816 NLSY mothers between 1979 and 2006 and followed to age 4-5years old. EXPOSURES: gestational weight gain (GWG) and post-delivery maternal weight change (PDWC). OUTCOME: child overweight (body mass index (BMI) ≥85th percentile). RESULTS: Adjusted models suggested that both increased GWG (OR: 1.08 per 5kg GWG, 95% CI: 1.01, 1.16) and excessive GWG (OR: 1.29 versus adequate GWG, 95% CI: 1.06, 1.56) were associated with preschooler overweight. Maternal weight change after delivery was also independently associated with child overweight (OR: 1.12 per 5kg PDWC, 95% CI: 1.04, 1.21). Associations were stronger among children with overweight or obese mothers. CONCLUSIONS: Increased maternal weight gain both during and after pregnancy predicted overweight in preschool children. Our results suggest that healthy post-pregnancy weight may join normal pre-pregnancy BMI and adequate GWG as a potentially modifiable risk factor for child overweight.
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