Millon Clinical Multiaxial Inventory--II. Follow-up of patients with dissociative identity disorder.

This study is part of a two-year follow-up assessment of 35 out of 96 patients clinically diagnosed with Dissociative Identity Disorder, who were administered the Millon Clinical Multiaxial Inventory-II. Eight subjects achieved integration during the two-year follow-up period. Significant improvement was evident for raw scores on the Self-defeating, Borderline, Paranoid, Anxiety, Somatoform, Dysthymia, Alcohol Dependence, and Drug Dependent scales among both the integrated and nonintegrated patients, with clinically meaningful Base Rate reductions occurring on Self-defeating, Borderline, Avoidant, Passive-Aggressive, Anxiety, Dysthymia, and Major Depression scales following integration. Although Dissociative Identity Disorder presents with polysymptomatology, much treatment progress can be achieved during pre-integration and dramatic improvement follows integration.