BACKGROUND: Investigators have proposed that the cognitive-bebavioral patterns of
persons with the dual diagnoses of depression and substance abuse differ from those
of persons with only one of the disorders. However, researchers have not investi
gated these differences.
OBJECTIVE: This study examined differences in severity of depression, cognitions, and
adaptive functioning among depressed persons with and without coexisting substance
abuse.
DESIGN: A cross-sectional design was used to compare depressed adult inpatients
with (n = 31) and without (n = 32) coexisting substance abuse.
RESULTS: Although both groups were found to be moderately depressed and limited in
their functional ability, the dual diagnosis group was more severely depressed (F(1,60)
= 4.05; p = .05), more limited in functioning (F(1,60) = 3.52; p = .07), and reported
more depressive cognitions (F(1,60) = 7. 72; p =.01). The groups were similar in se
verity of depression and adaptive functioning when the effects related to the depres
sive cognitions were statistically controlled.
CONCLUSION: The findings support the importance of using nursing interventions that
involve cognitive restructuring to assist persons with the dual diagnoses of depressive
illness and substance abuse to change their maladaptive ways of thinking to more
healthy and adaptive thought processes. (JAM PSYCHIATR NURSES Assoc [1995]. 1, 55-60)