Abstract
Using the MCMI‐III, we studied rates of personality disorders among 443 inpatient drug abusers (i.e., 160 opiate addicts and 283 cocaine addicts). For both samples the disorders of antisocial (60%), passive‐aggressive (negativistic) (34%), and depressive personality disorders (32%) showed higher prevalence rates. Previous studies (N = 13) using different measures (e.g., SCID, SDIP, MCMI‐I) reported similar findings in terms of overall prevalence of specific personality disorders, although actual rates varied by population.