Abstract
This study identified clinically meaningful psychopathology
subgroups of drug-dependent male veterans based on cluster analysis
of Millon Clinical Multiaxial Inventory-II (MCMI-II) records
completed shortly after inpatient admission. A high pathology
cluster subgroup was defined by clinically significant elevations on
multiple personality disorder and symptom scales. An antisocial
cluster subgroup was identified by a highly significant mean
elevation on the Antisocial scale and secondary clinical elevations
on the Aggressive and Narcissistic scales. Finally, a subclinical
cluster subgroup was defined by the absence of clinically
significant elevations on any MCMI-II scales. In comparison with
members of the other two groups, members of the high pathology
subgroup exhibited more substance abuse and psychiatric problems and
less favorable attitudes relevant to HIV-AIDS risk reduction.
