This study compared demographic characteristics, Addiction Severity Index (
ASI) ratings and psychiatric symptoms in 103 substance abusers with and wit
hout gambling problems. Thirty-one of the substance abusers were identified
as probable pathological gamblers on the South Oaks Gambling Screen. Altho
ugh no differences in demographic characteristics or ASI ratings were noted
between the groups, subjects with a gambling problem consistently reported
more psychiatric distress than substance abusers without a gambling proble
m. Specifically, they had increased ratings on somatization, obsessive-comp
ulsive, interpersonal sensitivity, hostility, and paranoia scales. These re
sults are discussed in terms of the need to identify and treat gambling pro
blems among substance abusers.