The following comparisons reached statistical significance: the VAS score for craving at baseline was lower among retained clients at T30 (p¼0.01) and T60 (P¼0.02), and so was the OCDS compulsion score at baseline among retained clients at T30 (p¼0.04); those receiving a psychopharmacological therapy after the start-up phase showed a better retention at T30 (p¼0.01) and at T60 (p¼0.04). Conclusion: According to this preliminary analysis, alcohol-related symptom distress at baseline and lack of psychiatric medication after the intensive treatment phase are more frequently observed in early drop-out. Further analysis is necessary to identify true predictors of retention in a multivariate model.