Figure 1.

Comparison of pre-intervention group (June 2011) (a), and post-intervention group (March 2012) (b). This figure breaks down the characteristics of all patients with alcohol dependence admitted during the two comparison months. Regarding eligibility criteria for treatment with naltrexone, over 50 % of patients in both groups were eligible for treatment. The primary process measure was the percent of those patients eligible for naltrexone who were prescribed naltrexone. This increased from 0 % to 64 % (p < 0.001) after the intervention. For the primary outcome measures, the rate of readmissions within 30 days decreased from 23.4 % to 8.2 % (p = 0.042) and the rate of patients with emergency department (ED) visits within 30 days decreased from 18.8 % to 6.1 % (p = 0.056).