Risk factors for anorexia nervosa: A national cohort study
Article first published online: 13 OCT 2003
Copyright © 2003 Wiley Periodicals, Inc.
International Journal of Eating Disorders
Volume 34, Issue 4, pages 397–408, December 2003
How to Cite
Lindberg, L. and Hjern, A. (2003), Risk factors for anorexia nervosa: A national cohort study. Int. J. Eat. Disord., 34: 397–408. doi: 10.1002/eat.10221
- Issue published online: 13 OCT 2003
- Article first published online: 13 OCT 2003
- Manuscript Accepted: 13 JAN 2003
- risk factors;
- anorexia nervosa;
- national registers;
- Swedish population
To identify possible risk factors for anorexia nervosa through national registers.
The study includes the entire Swedish population of 989,871 individuals born between 1973 and 1982. Patients with anorexia nervosa were identified through the Swedish Hospital Discharge Register from November 1990 to December 1999. Information about sociodemographic, perinatal, and psychosocial variables was obtained from different national registers. Attributable risk (AR) was calculated for potential risk factors.
Females had the highest AR for hospital admission because of anorexia nervosa (89.2%). Another important risk factor was having parents born in northern, central, or eastern Europe (AR: 49.3%). Psychosocial risk factors also were associated with an increased risk for anorexia nervosa (AR: 7.6%), whereas perinatal complications had an AR of only 3.6%.
The most important risk factors were related to the sociocultural context of the individual, thus supporting hypotheses of a sociocultural etiology of anorexia nervosa. © 2003 by Wiley Periodicals, Inc. Int J Eat Disord 34: 397–408, 2003.