763. 30 Day Readmission Outcomes in Patients Over 80 Years of Age Enrolled in an Outpatient Parenteral Antibiotic Therapy (OPAT) Program

BACKGROUND: OPAT is a well-established model of care for the monitoring of patients requiring long-term IV antibiotics1. We have previously reported a reduction in the 30-day readmission rate to our facility for patients managed in our OPAT program. However, little has been published to date regarding outcomes in OPAT patients over 80 years of age 2–3. Our OPAT program was established in 2013. Patients can be discharged to a facility or home to complete their course of antibiotics. METHODS: We conducted a retrospective chart review of all OPAT patients discharged from our facility from 2015 to 2018. Patients were divided into two groups based on age, <80 (n = 4618) and >80 (n = 562). RESULTS: Patient demographics are listed in Table 1. The overall 30-day readmission rate for patients older than 80 was 27.8%. For patients over 80 that had a follow-up ID clinic appointment, the 30-day readmission rate decreased to 15.7%. For patients younger than 80, the 30-day readmission rate was 36.0% with a decrease to 16.2% if patients were evaluated in the outpatient clinic. Figure 1. Staphylococcus Aureus was the predominant organism in both age categories. Vancomycin was the most common antibiotic used in both age groups followed by β lactams. CONCLUSION: In general, patients aged over 80 years were more likely to be discharged to a facility to complete their antibiotic course than younger patients. These patients also were more likely to have other comorbidities. The 30-day readmission rate in each age group was relatively similar. OPAT in patients over age 80 can have similar 30-day readmission rates as for patients less than 80 years of age [Image: see text] [Image: see text] DISCLOSURES: All authors: No reported disclosures.