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Updated: Apr 18, 2026

Inverse Probability of Treatment Weighting Propensity Score using the Military Health System Data Repository and National Death Index
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Veteran Status and Body Weight: A Longitudinal Fixed-Effects Approach.

Jay Teachman1, Lucky Tedrow1

  • 1Department of Sociology, Western Washington University, 516 High Street, Bellingham, WA 98225-9081, USA.

Population Research and Policy Review
|January 13, 2015
PubMed
Summary

Military service is linked to higher body mass index (BMI) and obesity in veterans. This weight gain, associated with service-related eating and activity habits, persists after transitioning to civilian life.

Keywords:
Body weightFixed-effectsVeteran status

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Area of Science:

  • Sociology
  • Public Health
  • Military Health

Background:

  • A significant portion of the population serves in the military, yet the long-term health impacts remain understudied.
  • Understanding the consequences of military service is crucial for veteran well-being.

Purpose of the Study:

  • To estimate the relationship between peacetime military service and body weight.
  • To investigate the long-term effects of military service on body mass index (BMI) and obesity.

Main Methods:

  • Utilized longitudinal data from 6,304 men in the National Longitudinal Survey of 1979 (NLSY-79).
  • Employed fixed-effects estimators over 13 years of data, controlling for time-varying life-course characteristics.
  • Analyzed the association between active-duty military service and subsequent body weight.

Main Results:

  • Veterans of active-duty military service exhibited higher levels of BMI.
  • A significant increase in obesity rates was observed among military veterans.
  • The study found that weight gained during service was not lost after transitioning to civilian life.

Conclusions:

  • Peacetime military service is associated with increased BMI and obesity in men.
  • Dietary habits and physical activity patterns during service contribute to long-term weight gain.
  • The transition to less active civilian lifestyles exacerbates weight gain among veterans.