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Genetic and environmental influences on restrained eating behavior.
- Source :
-
International Journal of Eating Disorders . Dec2009, Vol. 42 Issue 8, p765-772. 8p. 1 Diagram, 3 Charts. - Publication Year :
- 2009
-
Abstract
- Objective: We examined the relative contributions of genetic and environmental influences to restrained eating. Method: Restrained eating was assessed by the Restraint Scale in a survey mailed to all twins enrolled in the University of Washington Twin Registry. We used structural equation modeling to estimate genetic and nongenetic contributions to restrained eating. Results: 1,196 monozygotic (MZ), 456 same-sex dizygotic (DZ) twins, and 447 opposite-sex twins were included in analyses. Restraint Scale scores were more closely correlated in MZ twins (rmale = .55, rfemale = .55) than in same-sex DZ twins (rmale = .31, rfemale = .19). Based on structural equation modeling, the estimated heritability for restrained eating, adjusted for body mass index (BMI) and sex, was 43% (95% confidence interval 35–50%). There was little evidence for common environmental effects. Discussion: These results indicate an inherited component to restrained eating. Genes could influence restrained eating directly or through inherited mediators such as personality factors or tendencies to gain weight. © 2009 by Wiley Periodicals, Inc. Int J Eat Disord 2009 [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02763478
- Volume :
- 42
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- International Journal of Eating Disorders
- Publication Type :
- Academic Journal
- Accession number :
- 45232186
- Full Text :
- https://doi.org/10.1002/eat.20734