Although a number of studies have examined the comorbidity of anxiety disor
ders and substance use disorders, much less is known about the impact of an
xiety symptoms on substance use and on substance abuse treatment outcome, I
n the current study, we examined how self-reported anxiety levels, as measu
red by the Spielberger State-Trait Anxiety Inventory, were related to cocai
ne use variables and patterns following substance abuse treatment. There we
re 108 patients in substance abuse treatment who met DSM-III-R diagnostic c
riteria for cocaine abuse or dependence who completed an assessment battery
at pretreatment, posttreatment, and 3-month follow-up. State anxiety score
s significantly declined from pre- to posttreatment and remained stable int
o the 3-month follow-up period regardless of relapse status. Trait anxiety
was correlated positively with negative consequences due to cocaine use and
negatively correlated with days in treatment. Start and trait anxiety both
ware correlated positively with the Alcohol Composite Index of the Addicti
on Severity Index (ASI). These findings suggest that elevated anxiety score
s at pretreatment subside with lime, do not require clinical management of
associated anxiety symptoms, and may be a temporary by-product of experienc
ing negative consequences due to recent cocaine use.