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Risk factors for binge eating and purging eating disorders: differences based on age of onset

Citation

Allen, KL and Byrne, SM and Oddy, WH and Schmidt, U and Crosby, RD, Risk factors for binge eating and purging eating disorders: differences based on age of onset, International Journal of Eating Disorders, 47, (7) pp. 802-812. ISSN 0276-3478 (2014) [Refereed Article]

DOI: doi:10.1002/eat.2229

Abstract

OBJECTIVE: To (1) determine whether childhood risk factors for early onset binge eating and purging eating disorders also predict risk for later-onset binge eating and purging disorders, and (2) compare the utility of childhood and early adolescent variables in predicting later-onset disorders.

METHOD: Participants (N = 1,383) were drawn from the Western Australian Pregnancy Cohort (Raine) Study, which has followed children from pre-birth to age 20. Eating disorders were assessed when participants were aged 14, 17, and 20. Risk factors for early onset eating disorders have been reported previously (Allen et al., J Am Acad Child Psychiat, 48, 800-809, 2009). This study used logistic regression to determine whether childhood risk factors for early onset disorders, as previously identified, would also predict risk for later-onset disorders (n = 145). Early adolescent predictors of later-onset disorders were also examined.

RESULTS: Consistent with early onset cases, female sex and parent-perceived child overweight at age 10 were significant multivariate predictors of binge eating and purging disorders with onset in later adolescence. Eating, weight, and shape concerns at age 14 were also significant in predicting later-onset disorders. In the final stepwise multivariate model, female sex and eating, weight, and shape concerns at age 14 were significant in predicting later-onset eating disorders, while parent-perceived child overweight at age 10 was not.

DISCUSSION: There is overlap between risk factors for binge eating and purging disorders with early and later onset. However, childhood exposures may be more important for early than later onset cases.

Item Details

Item Type:Refereed Article
Keywords:Raine study, binge eating, binge eating disorder, bulimia nervosa, eating disorders, purging; purging disorder, risk factors
Research Division:Medical and Health Sciences
Research Group:Nutrition and Dietetics
Research Field:Clinical and Sports Nutrition
Objective Division:Health
Objective Group:Public Health (excl. Specific Population Health)
Objective Field:Nutrition
Author:Oddy, WH (Professor Wendy Oddy)
ID Code:107438
Year Published:2014
Web of Science® Times Cited:14
Deposited By:Menzies Institute for Medical Research
Deposited On:2016-03-16
Last Modified:2017-11-06
Downloads:0

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