Objective: This study was intended to examine the extent of dissociati
ve experiences that exist within a substance abuse population and to d
etermine how demographic and clinical variables affect these experienc
es. Method: A total of 265 male veterans being treated on an inpatient
substance abuse unit completed a standard test battery that included
the MMPI-2, the Shipley-Hartford Institute of Living Scale, and the Di
ssociative Experiences Scale. Additional demographic and clinical info
rmation was obtained from the patients' medical records. Results: Over
41% of the cohort had scores on the Dissociative Experiences Scale th
at suggested the need for further evaluation of a dissociative disorde
r. A stepwise multiple regression analysis revealed that level of psyc
hological discomfort, IQ, and race accounted for more than 24% of the
variance in Dissociative Experiences Scale scores. Conclusions: Substa
nce abuse populations may need to be routinely screened for dissociati
ve symptoms just as they are for depression and anxiety.