Abstract
Aims: The present study examined whether lifetime cocaine use consequences mediate the relationship between trait impulsiveness and current depression symptoms among regular cocaine users. Methods: Regular cocaine users (. N=. 108) were assessed using: Barratt Impulsiveness Scale subscales (non-planning, attentional, motor sub-scales) to measure trait impulsiveness; a standardized Drug History and Use Questionnaire to measure cocaine use and related consequences; and Beck Depression Inventory to measure current depression symptoms. Results: All impulsiveness subscales were positively associated with an earlier age of first cocaine use, a higher degree of current depression symptoms and a greater number of lifetime cocaine use consequences. In three separate simple mediation tests, lifetime cocaine use consequences partially mediated the relationship between each of the impulsiveness subscales (non-planning: R2=.42; attentional: R2=.40; motor: R2=.24) and current depression symptoms. Separate moderated mediation analyses failed to demonstrate an interaction between lifetime cocaine use and cocaine-related consequences predicting depression symptoms for the mediation models. Conclusions: Cocaine-related consequences function in a more nuanced manner than just an outcome of impulsiveness or cocaine use, but as a pathway between trait impulsiveness and current depression symptoms.
Original language | English (US) |
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Pages (from-to) | 1-6 |
Number of pages | 6 |
Journal | Addictive Behaviors |
Volume | 41 |
DOIs | |
State | Published - Feb 1 2015 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Medicine (miscellaneous)
- Clinical Psychology
- Toxicology
- Psychiatry and Mental health
Keywords
- Cocaine
- Cocaine use consequences
- Depression
- Impulsiveness
- Pathways