RESULTS: Of n=91 patients with an index admission for AECOPD enrolled, 14.29% (n=13) were readmitted within 30-days, compared to 19.46% during the year prior to the launch of our program (n=79 of 409 index admissions for AECOPD, p=0.13). Comparing patients that received pharmacy training, the ≤30-day readmissions group tended to be younger (61 years vs. 69 years, p=0.01) and with higher psychiatric comorbidity (52.38% vs. 24.29%, p=0.01) when compared to the >30-day readmissions group. The ≤30-day group also tended to be male (57.14% vs. 38.57%, p=0.13), and have higher rates of co-existing non-COPD pulmonary disease (28.57% vs. 24.29%, p=0.69), malignancy (14.29% vs. 8.57%, p=0.44), and other major comorbidity (i.e. ESRD or cirrhosis; 33.33% vs. 22.86%, p=0.33), though none of these differences reached statistical significance. The >30-day readmissions group tended to have higher rates of heart disease (45.71% vs. 33.33%, p=0.31), while substance abuse was nearly equal between both groups (38.10% vs. 37.14%, p=0.94).