The SUBUSQOL cohort aimed to improve knowledge of the quality of ambulatory care, in particular the prognostic role of the early satisfaction with care on the change from baseline quality of self-reported health status in outpatients with alcohol or opioid dependence. It is a multicenter prospective cohort. Satisfaction was assessed using a multidimensional self-administered and validated questionnaire during the early care process. In addition to measuring satisfaction and obtaining sociodemographic and clinical data, this study collected data on the self-reported health status at inclusion and 3, 6 and 12 months after inclusion.

Early satisfaction with care was measured using the quality of care satisfaction questionnaire in outpatient consultation (EQS-C). Data collected during the study included patient sociodemographic, clinical and health status characteristics, as well as physician characteristics. Self-perceived quality of life was assessed using the generic SF-12 and a specific questionnaire in illness disease, the Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form (Q-LES-Q-SF).

Inclusion Criteria:

• Outpatients who met the Diagnostic and Statistical Manual, fourth edition (DSM-IV) criteria for alcohol dependence, opioid dependence, or both.
• Patients recruited from the French specialized addiction treatment centers where they began care.
• Patient agreement obtained

Exclusion Criteria:

• Age lower than 18 years
• Inability to complete self-questionnaires

Outpatients with substance dependence