ERIC Number: EJ950890
Record Type: Journal
Publication Date: 2005-Dec
Abstractor: As Provided
Reference Count: N/A
The Developmental Association between Eating Disorders Symptoms and Symptoms of Depression and Anxiety in Juvenile Twin Girls
Silberg, Judy L.; Bulik, Cynthia M.
Journal of Child Psychology and Psychiatry, v46 n12 p1317-1326 Dec 2005
Objective: We investigated the role of genetic and environmental factors in the developmental association among symptoms of eating disorders, depression, and anxiety syndromes in 8-13-year-old and 14-17-year-old twin girls. Methods: Multivariate genetic models were fitted to child-reported longitudinal symptom data gathered from clinical interview on 408 MZ and 198 DZ female twin pairs from the Virginia Twin Study of Adolescent Behavioural Development (VTSABD). Results: Model-fitting revealed distinct etiological patterns underlying the association among symptoms of eating disorders, depression, overanxious disorder (OAD), and separation anxiety disorder (SAD) during the course of development: 1) a common genetic factor influencing liability to all symptoms--of early and later OAD, depression, SAD, and eating symptoms; 2) a distinct genetic factor specifically indexing liability to early eating disorders symptoms; 3) a shared environmental factor specifically influencing early depression and early eating disorders symptoms; and 4) a common environmental factor affecting liability to symptoms of later eating disorders and both early and later separation anxiety. Conclusions: These results suggest a pervasive genetic effect that influences liability to symptoms of over-anxiety, separation anxiety, depression, and eating disorder throughout development, a shared environmental influence on later adolescent eating problems and persistent separation anxiety, genetic influences specific to early eating disorders symptoms, and a shared environmental factor influencing symptoms of early eating and depression.
Descriptors: Anxiety Disorders, Twins, Females, Eating Disorders, Genetics, Environmental Influences, Depression (Psychology), Separation Anxiety, Investigations, Longitudinal Studies, Children, Adolescents, Interviews, Science Education, Child Psychology
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Publication Type: Journal Articles; Reports - Research
Education Level: Elementary Education
Authoring Institution: N/A
Identifiers - Location: Virginia