title: Subtypes of adolescents with substance use disorders and psychiatric comorbidity using cluster and discriminant analysis of MMPI-A profiles.
abstract: The main aim of this study was to replicate and extend previous results on subtypes of adolescents with substance use disorders (SUD), according to their Minnesota Multiphasic Personality Inventory for adolescents (MMPI-A) profiles. Sixty patients with SUD and psychiatric comorbidity (41.7% male, mean age = 15.9 years old) completed the MMPI-A, the Teen Addiction Severity Index (T-ASI), the Child Behaviour Checklist (CBCL), and were interviewed in order to determine DSMIV diagnoses and level of substance use. Mean MMPI-A personality profile showed moderate peaks in Psychopathic Deviate, Depression and Hysteria scales. Hierarchical cluster analysis revealed four profiles (acting-out, 35% of the sample; disorganized-conflictive, 15%; normative-impulsive, 15%; and deceptive-concealed, 35%). External correlates were found between cluster 1, CBCL externalizing symptoms at a clinical level and conduct disorders, and between cluster 2 and mixed CBCL internalized/externalized symptoms at a clinical level. Discriminant analysis showed that Depression, Psychopathic Deviate and Psychasthenia MMPI-A scales correctly classified 90% of the patients into the clusters obtained.
authors.affiliation: Department of Child and Adolescent Psychiatry and Psychology, Institute of Neurosciences Hospital Clínic Universitari of Barcelona, SGR1119 and Biomedical Research Center in Mental Health Network CIBERSAM, Spain. emagallonneri@ub.edu
authors.forename: Ernesto
authors.initials: E
authors.lastname: Magallón-Neri
authors.forename: Rosa
authors.initials: R
authors.lastname: Díaz
authors.forename: Maria
authors.initials: M
authors.lastname: Forns
authors.forename: Javier
authors.initials: J
authors.lastname: Goti
authors.forename: Gloria
authors.initials: G
authors.lastname: Canalda
authors.forename: Josefina
authors.initials: J
authors.lastname: Castro-Fornieles
mesh_terms: D000293:Adolescent; D016000:Cluster Analysis; D015897:Comorbidity; D016002:Discriminant Analysis; D005260:Female; D006801:Humans; D008950:MMPI; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis* / Q000453:epidemiology*; D019966:Substance-Related Disorders / Q000145:classification* / Q000453:epidemiology*