Author:

Keywords:

bipolar affective-disorder, controlled family history, dsm-iii disorders, sex-differences, major depression, developmental processes, behavioral-development, young adolescents, chronologic age, pubertal status, Science & Technology, Life Sciences & Biomedicine, Psychiatry, BIPOLAR AFFECTIVE-DISORDER, CONTROLLED FAMILY HISTORY, DSM-III DISORDERS, SEX-DIFFERENCES, MAJOR DEPRESSION, DEVELOPMENTAL PROCESSES, BEHAVIORAL-DEVELOPMENT, YOUNG ADOLESCENTS, CHRONOLOGIC AGE, PUBERTAL STATUS, Adolescent, Age Factors, Child, Depressive Disorder, Diseases in Twins, Female, Genetic Predisposition to Disease, Genetic Variation, Humans, Life Change Events, Male, Models, Genetic, Personality Inventory, Psychology, Adolescent, Puberty, Regression Analysis, Sex Factors, Twins, Dizygotic, Twins, Monozygotic, 11 Medical and Health Sciences, 17 Psychology and Cognitive Sciences

Abstract:

Background: The possible causes of greater depression among adolescent girls were investigated by examining variation in the influence of genetic and environmental risk factors among 182 prepubertal female, 237 prepubertal male, 314 pubertal female, and 171 pubertal male twin pairs from the Virginia Twin Study of adolescent Behavioral Development.