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Exposure to prenatal smoking and early-life body composition: the healthy start study

Curtis S Harrod1, Tasha E Fingerlin, Lisa Chasan-Taber

  • 1Department of Epidemiology, Colorado School of Public Health, Aurora, Colorado, USA.

Obesity (Silver Spring, Md.)
|November 12, 2014
PubMed

Insights

Prenatal smoking exposure is linked to lower birth body composition but faster postnatal growth in offspring. This rapid growth may elevate the risk of metabolic diseases later in life.

Area of Science:

  • Pediatrics
  • Public Health
  • Developmental Biology

Background:

  • Maternal smoking during pregnancy is a significant public health concern.
  • Understanding the impact of prenatal smoke exposure on offspring's early body composition is crucial for long-term health outcomes.

Purpose of the Study:

  • To investigate the association between prenatal smoking exposure and changes in offspring's fat mass (FM) and fat-free mass (FFM).
  • To analyze the impact on anthropometric measurements from birth to five months of age.

Main Methods:

  • Analysis of data from approximately 670 mother-offspring pairs in the longitudinal Healthy Start study.
  • Maternal smoking status determined from prenatal visit data.
  • Offspring body composition (FM, FFM) and anthropometrics measured via air displacement plethysmography at birth and 5-month follow-up.

Main Results:

  • Prenatal smoking exposure was associated with reduced neonatal FM and FFM.
  • At 5 months, FM and FFM were comparable between exposed and unexposed groups.
  • Adjusted analyses revealed significantly greater FFM and sum of skinfolds in exposed offspring, along with accelerated increases in these measures from delivery to follow-up.

Conclusions:

  • Prenatal smoking exposure is linked to rapid postnatal growth trajectories.
  • This rapid growth may represent an increased risk for developing metabolic diseases in offspring.
  • Further research is warranted to explore the long-term metabolic implications.
Abstract

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