title: The Swedish Twin study of CHild and Adolescent Development: the TCHAD-study.
abstract: The Swedish Twin study of CHild and Adolescent Development (TCHAD) is a longitudinal study of how genes and environments contribute to development of health and behavioral problems from childhood to adulthood. The study includes 1480 twin pairs followed since 1994, when the twins were 8 to 9 years old. The last data collection was in 2005 when the twins were 19 to 20 years old. Both parents and twins have provided data. In this article we describe the sample, data collections, and measures used. In addition, we provide some key findings from the study, focusing on antisocial behavior, criminality, and psychopathic personality.
authors.affiliation: Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Sweden. Paul.Lichtenstein@ki.se
authors.forename: Paul
authors.initials: P
authors.lastname: Lichtenstein
authors.forename: Catherine
authors.initials: C
authors.lastname: Tuvblad
authors.forename: Henrik
authors.initials: H
authors.lastname: Larsson
authors.forename: Eva
authors.initials: E
authors.lastname: Carlström
mesh_terms: D000293:Adolescent; D000328:Adult; D000987:Antisocial Personality Disorder / Q000235:genetics / Q000523:psychology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D012920:Social Behavior Disorders / Q000235:genetics / Q000523:psychology; D011795:Surveys and Questionnaires; D013548:Sweden; D014427:Twins / Q000235:genetics / Q000523:psychology