An investigation of weight suppression in a population-based sample of female twins
Article first published online: 8 JAN 2010
Copyright © 2010 Wiley Periodicals, Inc.
International Journal of Eating Disorders
Volume 44, Issue 1, pages 44–49, January 2011
How to Cite
Mitchell, K. S., Neale, M. C., Bulik, C. M., Lowe, M., Maes, H. H., Kendler, K. S. and Mazzeo, S. E. (2011), An investigation of weight suppression in a population-based sample of female twins. Int. J. Eat. Disord., 44: 44–49. doi: 10.1002/eat.20780
- Issue published online: 8 JAN 2010
- Article first published online: 8 JAN 2010
- Manuscript Accepted: 4 OCT 2009
- National Institutes of Health. Grant Numbers: MH-20030, MH-65322, MH001553-02, MH-068643, MH-068520
- weight suppression;
- eating disorders;
- binge eating
Weight suppression (WS), maintaining a body weight below one's maximum adult weight, is associated with bingeing, purging, and weight gain in clinical samples.
We investigated associations between eating disorder-related variables and WS and additive genetic (A), common (C), and unique (E) environmental contributions to WS in a population-based sample of 1,503 female adult twins.
Modeling results were similar for participants reporting no binge eating (NBE) and those reporting binge eating plus loss of control (BE + LOC): 20–25% of the variance in WS was due to A and 70–75% due to E. Among NBE participants, restraint, drive for thinness, body dissatisfaction, and dieting during child/adulthood were related to WS. Restraint, disinhibition, and dieting during childhood were significantly associated with WS in the BE + LOC subsample.
Although maintaining lower body weight could be advantageous, interventionists should take care when addressing weight suppression in individuals vulnerable to eating disorder symptomatology. © 2010 by Wiley Periodicals, Inc. (Int J Eat Disord 2011; 44:44–49)