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Does major depression affect risk for adolescent obesity?

Robert E Roberts1, Hao T Duong2

  • 1UTHealth, School of Public Health, University of Texas Health Science Center, Houston, Texas San Antonio Regional Campus, 7411 John Smith Drive, Suite 1100, San Antonio, TX 78229 United States.

Journal of Affective Disorders
|August 7, 2015
PubMed
Summary
This summary is machine-generated.

Major depression and adolescent obesity are not directly linked. Body image appears to be a key factor, suggesting interventions should address body image concerns in obese adolescents with depression.

Keywords:
AdolescentsBody imageMajor depressionObesity

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Area of Science:

  • Adolescent Health
  • Mental Health Research
  • Obesity Studies

Background:

  • Major depression and obesity are prevalent in adolescents.
  • Previous research suggests a potential link, but the underlying mechanisms remain unclear.
  • This study uniquely uses DSM-IV criteria for depression and a two-wave adolescent cohort.

Purpose of the Study:

  • To investigate the association between major depression and obesity in adolescents.
  • To test the hypothesis that body image mediates the relationship between major depression and obesity.
  • To provide novel insights using a rigorous diagnostic and longitudinal approach.

Main Methods:

  • A cohort of 4175 adolescents (aged 11-17) was followed for one year.
  • Major depression was diagnosed using DSM-IV criteria.
  • Obesity was defined as BMI at or above the 95th percentile; body image was assessed via perceived weight.

Main Results:

  • No significant association was found between major depression at baseline and obesity at follow-up.
  • No independent association between major depression and body weight was observed.
  • The inclusion of body image variables in the model eliminated the observed association between depression and obesity.

Conclusions:

  • The direct etiological link between adolescent major depression and body weight is not supported by this study.
  • Body image appears to be a crucial mediating factor in the relationship between depression and obesity.
  • Clinical interventions for obese adolescents with depression should prioritize addressing body image concerns to potentially improve outcomes.