Although eating disorders have the highest mortality rate of any mental disorder, the mortality rates reported on those who suffer from eating disorders can vary considerably between studies and sources. Part of the reason why there is a large variance in the reported number of deaths caused by eating disorders is because those who suffer from an eating disorder may ultimately die of heart failure, organ failure, malnutrition or suicide. Often, the medical complications of death are reported instead of the eating disorder that compromised a person’s health.
According to a study done by colleagues at the American Journal of Psychiatry (2009), crude mortality rates were:
- 4% for anorexia nervosa
- 3.9% for bulimia nervosa
- 5.2% for eating disorder not otherwise specified
Crow, S.J., Peterson, C.B., Swanson, S.A., Raymond, N.C., Specker, S., Eckert, E.D., Mitchell, J.E. (2009) Increased mortality in bulimia nervosa and other eating disorders. American Journal of Psychiatry 166, 1342-1346.