The Symptom Check List 90R (SCL-90R) was administered to a sample of 9
4 polysubstance abusers seeking outpatient detoxification for opioid a
ddiction. The relationships among race, sex, and age, and psychiatric
symptoms were examined. Results obtained by an ANOVA indicated a signi
ficant effect only for race. White substance abusers reported signific
antly more psychiatric symptoms (on 9 out of 12 SCL-90R scales) than d
id Black substance abusers. A comparison of effect sizes between those
found in the present study and those of related studies is also prese
nted. Results suggest that race differences may be relevant to treatme
nt resource and treatment planning.