Validation of a cocaine craving questionnaire (CCQ-G) in Mexican population

This study aimed for the validation of the General Cocaine Craving Questionnaire (CCQ-G) in Mexican population. To achieve this, the scale was applied by interviewing 233 cocaine users, of which 214 met inclusion criteria for the final analysis. This study's inclusion criterion was: not having a psychotic episode and/or manic or depressive or cognitive damage that could impede adequate test solving. The sample consisted entirely of male participants, aged between 18 and 59 years (M=27, SD=9.2). All participants met DSM-IV-TR criteria for substance abuse and dependence. 83% of the sample were polydrug users, but reported cocaine as their main drug of use. 74.8% of the sample reported previously having attended treatment for cocaine dependence. At the time of the study, all of the sample was under residential treatment between their 4th and 12th week and was distributed in 5 different institutions whose treatment model is grounded in the philosophy of Alcoholics Anonymous. After factor analysis was performed, the model was adjusted to three factors. Factor 1 referred to intention to use cocaine, factor 2 expressed desire for cocaine consumption, and factor 3,referred to positive expectancies for cocaine consumption. The instrument showed good internal consistency with an alpha=.87.