Sample description. A) Number of patients that were positive for moderate/high use for each drug of abuse according to the ASSIST questionnaire. Both total positives (gray bars) and unique positives (white bars, patients who were positive for only one drug) are shown. B) Number of patient positive use of for none, one, or more drugs (according to ASSIST questionnaire). C) Number of patients diagnosed for each of the four most common DSM-IV diagnoses in the sample: Major depressive disorder (MDD), substance use disorder (SUD), anxiety disorders (ANX), and personality disorders (PD). Both total diagnosed (gray bars) and unique positives (white bars, patients who had only one diagnosis) are shown. D) Number of patient with none, one, or more diagnoses (counting only the four most common diagnoses, therefore zero are patients other than MDD, SUD, ANX or PD).