Offspring Risk of Obesity in Childhood, Adolescence and Adulthood in Relation to Gestational Diabetes Mellitus: A Sex-Specific Association

Int J Epidemiol. 2017 Oct 1;46(5):1533-1541. doi: 10.1093/ije/dyx151.

Abstract

Background: Animal data suggest sexually dimorphic programming of obesity in response to altered intrauterine environment, but the longitudinal impact of gestational diabetes mellitus (GDM) on sex-specific risk of offspring obesity in humans is unclear.

Methods: We conducted a prospective analysis of 15 009 US individuals (7946 female and 7063 male) from the Growing-Up Today Study, who were followed from 1996 (ages 9-14 years) through 2010. Height and weight from validated questionnaires were used to derive body mass index (BMI) at different ages. Obesity during childhood (< 18 years) and adulthood (≥ 18 years) were defined using the International Obesity Task Force and the World Health Organization criteria. GDM exposure was identified through self-reported questionnaires from mothers. Relative risks were estimated using multivariable log-binomial regression models with generalized estimating equations accounting for clustering within the same family.

Results: Male offspring born from pregnancies complicated by GDM had higher BMI compared with non-GDM offspring and had increased risk of obesity; the adjusted relative risk [RR, 95% confidence interval (CI)] was 1.47 (1.11-1.95) for all age groups, 1.59 (1.05-2.41) for late childhood, 1.48 (1.06-2.06) for adolescence and 1.39 (1.00-1.94) for early adulthood. No significant association between obesity and maternal GDM was observed among female participants (RR = 0.97, 95% CI: 0.71-1.33).

Conclusions: The association of GDM with offspring obesity from late childhood through early adulthood may differ by sex; a significant association was observed among male but not female offspring.

Keywords: Diabetes; gestational; obesity; paediatric obesity.

Publication types

  • Research Support, N.I.H., Intramural
  • Research Support, N.I.H., Extramural

MeSH terms

  • Adolescent
  • Adult
  • Age Distribution
  • Body Mass Index*
  • Body Weight
  • Child
  • Diabetes, Gestational / epidemiology*
  • Female
  • Humans
  • Male
  • Multivariate Analysis
  • Pediatric Obesity / epidemiology*
  • Pregnancy
  • Prospective Studies
  • Risk
  • Risk Factors
  • Sex Distribution
  • United States / epidemiology
  • Young Adult