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Prenatal Stress and Early Childhood Body Mass Index: A Path Analysis Approach

Charlotte V Farewell1, Jini Puma2, Zaneta M Thayer3

  • 1Department of Community and Behavioral Health, Colorado School of Public Health, University of Colorado- Anschutz Medical Campus, 13001 East 17th Place, Building 500, Mail Stop B119, Aurora, CO, 80045, USA. charlotte.farewell@cuanschutz.edu.

Maternal and Child Health Journal
|January 27, 2021
PubMed

Insights

Prenatal stress in mothers is linked to higher childhood BMI, with maternal nutrition and breastfeeding mediating this effect. Understanding these pathways can help prevent childhood obesity and its long-term health risks.

Area of Science:

  • Developmental Psychology
  • Public Health
  • Epidemiology

Background:

  • Prenatal maternal stress negatively impacts offspring development.
  • Elevated childhood BMI is a risk factor for adult chronic diseases like diabetes and heart disease.
  • Understanding the pathways from prenatal stress to childhood BMI is crucial for early intervention.

Purpose of the Study:

  • To analyze the pathways between prenatal maternal stress and early childhood BMI at 54 months.
  • To explore ethnic variations in these stress-BMI pathways.
  • To identify mediating factors in the relationship between prenatal stress and childhood BMI.

Main Methods:

  • Utilized the Growing Up in New Zealand (GUiNZ) longitudinal birth cohort dataset.
  • Employed path analysis modeling to examine risk and protective pathways.
  • Analyzed data from 5510 mother-child pairs, considering ethnicity.

Main Results:

  • Prenatal stress showed a positive association with early childhood BMI at 54 months.
  • Maternal nutrition behaviors and duration of exclusive breastfeeding mediated the relationship between prenatal stress and BMI.
  • Mediation and moderation pathways differed across ethnic groups.

Conclusions:

  • Findings illuminate the intergenerational transmission of stress concerning early childhood obesity.
  • Interventions targeting early stress exposure and mediating factors may be more effective than adult-focused health behavior changes.
  • This research highlights the importance of addressing prenatal stress for long-term child health outcomes.
Abstract

Keywords:
Early childhood obesityMaternal stressPrenatal stressResilienceRisk factors

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