Genetic risk factors for disordered eating in adolescent males and females.
The etiologic role of genetic and environmental factors on disordered eating was examined in a sample of 15- to 17-year-old female-female, male-male, and opposite-sex twin pairs. Also assessed was whether a single factor is underlying 3 facets (body dissatisfaction, drive for thinness, bulimia) of disordered eating, including the possible importance of sex differences. Univariate model-fitting analyses indicated that genetic factors are more important for girls and environment more important for boys for body dissatisfaction and drive for thinness. A multivariate common factor analysis indicated that a single factor accounted for the association among these 3 facets of disordered eating in both sexes. However, only 50% of the genetic risk for this factor is shared between the sexes.
Baker
Jessica H
JH
Department of Psychology, Virginia Commonwealth University, Richmond, VA 23284, USA. bakerjh@vcu.edu
Maes
Hermine H
HH
Lissner
Lauren
L
Aggen
Steven H
SH
Lichtenstein
Paul
P
Kendler
Kenneth S
KS
D000293:Adolescent; D000856:Anorexia Nervosa / Q000175:diagnosis / Q000235:genetics* / Q000523:psychology; D001828:Body Image; D052018:Bulimia Nervosa / Q000175:diagnosis / Q000235:genetics* / Q000523:psychology; D004200:Diseases in Twins / Q000175:diagnosis / Q000235:genetics* / Q000523:psychology; D005260:Female; D005783:Gender Identity; D005838:Genotype; D006801:Humans; D008297:Male; D008957:Models, Genetic; D009042:Motivation; D015999:Multivariate Analysis; D010555:Personality Inventory / Q000706:statistics & numerical data; D011594:Psychometrics; D012307:Risk Factors; D012737:Sex Factors; D012931:Social Environment; D013851:Thinness / Q000175:diagnosis / Q000235:genetics / Q000523:psychology; D014429:Twins, Dizygotic / Q000235:genetics / Q000523:psychology; D014430:Twins, Monozygotic / Q000235:genetics / Q000523:psychology
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