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Related Experiment Videos

The mortality rate from anorexia nervosa.

C Laird Birmingham1, Jenny Su, Julia A Hlynsky

  • 1Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada. clbirm@interchange.ubc.ca

The International Journal of Eating Disorders
|September 1, 2005
PubMed
Summary

This study found a significantly high mortality rate in patients with anorexia nervosa (AN). The standardized mortality ratio (SMR) for AN was 10.5, confirming elevated mortality risks in this population.

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Area of Science:

  • Psychiatry
  • Epidemiology
  • Public Health

Background:

  • Anorexia nervosa (AN) is a severe psychiatric disorder with debated mortality rates.
  • Previous studies present conflicting evidence regarding AN's mortality compared to the general population.

Purpose of the Study:

  • To determine the standardized mortality ratio (SMR) in a cohort of anorexia nervosa patients.
  • To investigate the mortality risk associated with anorexia nervosa.

Main Methods:

  • Cross-sectional study of an inception cohort from 1981-2000.
  • Data collected from a tertiary care eating disorders program in British Columbia, Canada.
  • Inclusion of all patients who completed an initial eating disorder assessment.

Main Results:

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  • The study included 326 patients diagnosed with anorexia nervosa out of 954 total patients.
  • The standardized mortality ratio (SMR) for anorexia nervosa was calculated to be 10.5.
  • A 95% confidence interval for the SMR was reported as 5.5-15.5.

Conclusions:

  • This study confirms a high mortality rate within the anorexia nervosa patient population.
  • Findings contradict some literature suggesting lower or normal mortality rates for AN.
  • The elevated SMR highlights the severe health risks associated with anorexia nervosa.