title: The childhood-onset neuropsychiatric background to adulthood psychopathic traits and personality disorders.
abstract: Childhood conduct disorder (CD) and adult psychopathic traits according to the Psychopathy Checklist Revised (PCL-R) were the closest psychiatric covariates to repeated violent crimes and aggression among offenders under forensic psychiatric investigation in Sweden. As psychopathy is not included in the present psychiatric diagnostic systems, we compared total and factor PCL-R scores to Axis I disorders, including childhood-onset neuropsychiatric disorders, and to Axis II personality disorders, to establish the convergence of psychopathic traits with other psychiatric diagnoses, and to identify possible unique features. Psychopathic traits were positively correlated with bipolar mood disorder and negatively with unipolar depression. The total PCL-R scores as well as the Factor 2 (unemotionality) and Factor 3 (behavioral dyscontrol) scores were significantly correlated with attention-deficit/hyperactivity disorder, Asperger's syndrome/high-functioning autistic traits, CD, substance abuse, and the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition Cluster B personality disorders. The interpersonal Factor 1 showed none of these correlations and may capture features that are specific to psychopathy, distinguishing core psychopathy from other diagnostic definitions.
authors.affiliation: Department of Forensic Psychiatry, 422 04 Hisings Backa, Sweden. henrik.soderstrom@rmv.se
authors.forename: Henrik
authors.initials: H
authors.lastname: Soderstrom
authors.forename: Thomas
authors.initials: T
authors.lastname: Nilsson
authors.forename: Anna-Kari
authors.initials: AK
authors.lastname: Sjodin
authors.forename: Anita
authors.initials: A
authors.lastname: Carlstedt
authors.forename: Anders
authors.initials: A
authors.lastname: Forsman
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000374:Aggression / Q000523:psychology; D000987:Antisocial Personality Disorder / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D020817:Asperger Syndrome / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D001321:Autistic Disorder / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D001714:Bipolar Disorder / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D002648:Child; D002653:Child Behavior Disorders / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D015897:Comorbidity; D003430:Cross-Sectional Studies; D003866:Depressive Disorder / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010554:Personality Disorders / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D011329:Prisoners / Q000523:psychology / Q000706:statistics & numerical data; D012307:Risk Factors; D012742:Sex Offenses / Q000523:psychology / Q000706:statistics & numerical data; D013223:Statistics as Topic; D019966:Substance-Related Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D014754:Violence / Q000523:psychology / Q000706:statistics & numerical data