In Utero Exposure to Maternal Tobacco Smoke and Subsequent Obesity, Hypertension, and Gestational Diabetes Among Women in the MoBa Cohort

Environ Health Perspect. 2012 Mar;120(3):355-60. doi: 10.1289/ehp.1103789. Epub 2011 Nov 29.

Abstract

Background: Environmental factors influencing the developmental origins of health and disease need to be identified and investigated. In utero exposure to tobacco smoke has been associated with obesity and a small increase in blood pressure in children; however, whether there is a corresponding increased risk of conditions such as diabetes and hypertension during adulthood remains unclear.

Objective: Our goal was to assess the association of self-reported in utero exposure to tobacco smoke with the prevalence of obesity, hypertension, type 2 diabetes mellitus (T2DM), and gestational diabetes mellitus (GDM) in women 14-47 years of age.

Methods: We conducted a cross-sectional analysis of the Norwegian Mother and Child Cohort Study, which enrolled pregnant women in Norway from 1999 thorough 2008. Exposure to tobacco smoke in utero (yes vs. no) was ascertained on the baseline questionnaire (obtained at ~ 17 weeks' gestation); the outcomes were ascertained from the Medical Birth Registry of Norway and the questionnaire. Our analysis included 74,023 women.

Results: Women exposed to tobacco smoke in utero had 1.53 times the odds of obesity [95% confidence interval (CI): 1.45, 1.61] relative to those unexposed, after adjusting for age, education, and personal smoking. After further adjustment for body mass index, the odds ratio for hypertension was 1.68 (95% CI: 1.19, 2.39); for T2DM 1.14 (95% CI: 0.79, 1.65); and for GDM 1.32 (95% CI: 1.10, 1.58) among exposed compared with unexposed.

Conclusions: Exposure to tobacco smoke in utero was associated with obesity, hypertension, and GDM in adult women. The possibility that the associations were attributable to unmeasured confounding cannot be excluded.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, N.I.H., Intramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Body Mass Index
  • Cohort Studies
  • Diabetes Mellitus, Type 2 / chemically induced
  • Diabetes Mellitus, Type 2 / epidemiology*
  • Diabetes, Gestational / chemically induced
  • Diabetes, Gestational / epidemiology*
  • Female
  • Humans
  • Hypertension / chemically induced
  • Hypertension / epidemiology*
  • Hypertension, Pregnancy-Induced / chemically induced
  • Hypertension, Pregnancy-Induced / epidemiology
  • Middle Aged
  • Norway / epidemiology
  • Obesity / chemically induced
  • Obesity / epidemiology*
  • Pregnancy
  • Prenatal Exposure Delayed Effects / chemically induced
  • Prenatal Exposure Delayed Effects / epidemiology*
  • Prevalence
  • Self Report
  • Tobacco Smoke Pollution*
  • Young Adult

Substances

  • Tobacco Smoke Pollution