Social Psychiatry and Psychiatric Epidemiology

, Volume 43, Issue 1, pp 63–71

The relationship between body mass index and mental health

A population-based study of the effects of the definition of mental health
  • Lindsay McLaren
  • Cynthia A. Beck
  • Scott B. Patten
  • Gordon H. Fick
  • Carol E. Adair
ORIGINAL PAPER

DOI: 10.1007/s00127-007-0269-x

Cite this article as:
McLaren, L., Beck, C.A., Patten, S.B. et al. Soc Psychiat Epidemiol (2008) 43: 63. doi:10.1007/s00127-007-0269-x

Abstract

Background

The association between atypical body weight and mental health remains poorly understood. We examined the relationship between body mass index and mental health in a population-based study of adults that included the full range of body weights, three disorder types, and three levels of mental illness severity.

Methods

Data came from the 2003 Alberta Mental Health Survey (n = 5383), which included a validated, standard instrument for measurement of DSM-IV mental disorders as well as several indicators of psychiatric symptoms. Associations were examined using crosstabulation and chi squared statistics, and logistic regression adjusting for sociodemographic variables.

Results

Findings differed by type and severity of mental illness and by sex and age. For instance, anxiety disorders were elevated among underweight men compared to normal weight men and to women. Substance use disorders were elevated among obese men at younger compared to older ages. Mood disorders were elevated among obese women compared to normal weight women, and subclinical anxiety/depression was reduced among obese men compared to normal weight men and to women.

Conclusions

These analyses highlight the importance of considering type of mental illness, level of severity, sex and age when examining the relationship between BMI and mental health. The diversity of patterns observed, detectable at the population level, warrant further examination and monitoring.

Key words

mental healthmental disordersbody mass indexepidemiologysurvey research

Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Lindsay McLaren
    • 1
  • Cynthia A. Beck
    • 1
    • 2
  • Scott B. Patten
    • 1
    • 2
  • Gordon H. Fick
    • 1
  • Carol E. Adair
    • 1
    • 2
  1. 1.Dept. of Community Health SciencesUniversity of CalgaryCalgaryCanada
  2. 2.Dept. of Psychiatry, Faculty of MedicineUniversity of CalgaryCalgaryCanada