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Relationship between body mass index of offspring and maternal smoking during pregnancy

T Ino1, T Shibuya, K Saito

  • 1Faculty of Health Science, Gunma Paz College, Takasaki, Gunma, Japan. ino-t@sk9.so-net.ne.jp

International Journal of Obesity (2005)
|December 21, 2011
PubMed

Insights

Maternal smoking during pregnancy is linked to higher body mass index (BMI) and obesity index (OI) in 9- to 10-year-old children. These effects may persist regardless of other lifestyle factors.

Area of Science:

  • Pediatric Health
  • Environmental Health
  • Public Health

Background:

  • Maternal smoking during pregnancy is a known risk factor for adverse child health outcomes.
  • Understanding the specific impact on offspring body composition is crucial for early intervention strategies.

Purpose of the Study:

  • To investigate the association between maternal smoking during pregnancy and the body composition of elementary school children.
  • To determine if this association is independent of other lifestyle and environmental factors.

Main Methods:

  • A cohort of 1366 9- to 10-year-old children was studied.
  • Data collected included parental questionnaires, passive smoking tests, urinary cotinine levels, and anthropometric measurements (BMI, OI).
  • Urinary 8-hydroxydeoxyguanosine (8-OHdG) was measured to assess oxidative stress.

Main Results:

  • Children of mothers who smoked during pregnancy exhibited significantly higher BMI and OI.
  • Increased BMI and OI were correlated with the duration of maternal smoking.
  • Maternal smoking's impact on BMI and OI remained significant even after accounting for confounding lifestyle factors.

Conclusions:

  • Maternal smoking during pregnancy is a significant risk factor for elevated BMI and OI in offspring.
  • The findings suggest that maternal smoking's influence on child body composition may be independent of common confounding factors.
  • Early identification and intervention for children exposed to maternal smoking are warranted.
Abstract

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