The Collaborative Longitudinal Personality Disorders Study: baseline Axis I/II and II/II diagnostic co-occurrence. Conference Paper uri icon


  • 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.

published proceedings

  • Acta Psychiatr Scand

altmetric score

  • 3

author list (cited authors)

  • McGlashan, T. H., Grilo, C. M., Skodol, A. E., Gunderson, J. G., Shea, M. T., Morey, L. C., Zanarini, M. C., & Stout, R. L

citation count

  • 426

complete list of authors

  • McGlashan, TH||Grilo, CM||Skodol, AE||Gunderson, JG||Shea, MT||Morey, LC||Zanarini, MC||Stout, RL

publication date

  • October 2000