Mental health impairment in underweight women: do body dissatisfaction and eating-disordered behavior play a role?
2011

Mental Health Impairment in Underweight Women

Sample size: 231 publication 10 minutes Evidence: moderate

Author Information

Author(s): Jonathan Mond, Bryan Rodgers, Philipa Hay, Cathy Owen

Primary Institution: Australian National University

Hypothesis

Mental health impairment in underweight women is due to an association between low body weight and elevated levels of body dissatisfaction and/or eating-disordered behaviour.

Conclusion

Mental health impairment in underweight women is unlikely to be due to higher levels of body dissatisfaction or eating-disordered behaviour.

Supporting Evidence

  • Underweight women had significantly greater impairment in mental health than normal-weight women.
  • Underweight women had lower levels of body dissatisfaction and eating-disordered behaviour than normal-weight women.
  • Body dissatisfaction was a strong predictor of mental health impairment among underweight women.

Takeaway

Underweight women are not more likely to feel bad about their bodies or have eating disorders, but they still have mental health issues.

Methodology

The study compared underweight and normal-weight women on measures of body dissatisfaction, eating-disordered behaviour, and mental health using self-report questionnaires.

Potential Biases

Potential bias due to non-response and the exclusion of individuals with eating disorders from the sample.

Limitations

Some important covariates were not assessed, and the sample may not be representative of all underweight women.

Participant Demographics

Participants were young women aged 18 to 42, primarily born in Australia, with a mean age of 30.3 years.

Statistical Information

P-Value

p<0.01

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2458-11-547

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