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The Collaborative Longitudinal Personality Disorders Study: baseline Axis I/II and II/II diagnostic co‐occurrence
Author(s) -
McGlashan Thomas H.,
Grilo Carlos M.,
Skodol Andrew E.,
Gunderson John G.,
Shea M. Tracie,
Morey Leslie C.,
Zanarini Mary C.,
Stout Robert L.
Publication year - 2000
Publication title -
acta psychiatrica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.849
H-Index - 146
eISSN - 1600-0447
pISSN - 0001-690X
DOI - 10.1034/j.1600-0447.2000.102004256.x
Subject(s) - psychology , personality disorders , borderline personality disorder , avoidant personality disorder , psychiatry , clinical psychology , personality , longitudinal study , medicine , psychoanalysis , pathology
Objective: To describe baseline diagnostic co‐occurrence in the Collaborative Longitudinal Personality Disorders Study. Method: Six hundred and sixty‐eight patients were reliably assessed with diagnostic interviews for DSM‐IV Axis I and II disorders to create five groups: Schizotypal (STPD), Borderline (BPD), Avoidant (AVPD), Obsessive‐Compulsive (OCPD) and Major Depressive Disorder (MDD) without personality disorder (PD). Results: Mean number of Axis I lifetime diagnoses was 3.4; STPD and BPD groups had more diagnoses than AVPD, OCPD, and MDD groups. Significant Axis I co‐occurrences emerged for Social Phobia/AVPD, PTSD/BPD and Substance Use/BPD. Mean number of co‐occurring PDs was 1.4; STPD had more than BPD group which had more than AVPD and OCPD groups. Significant PD co‐occurrence emerged for: STPD/ Paranoid and Schizoid PDs, BPD with Antisocial and Dependent PDs, and lower frequency for OCPD/Antisocial PD. Conclusion: Diagnostic co‐occurrences generally followed base rates, while significant departures resemble those of controlled literature.