Polypharmacy at discharge in older hospitalised patients in Vietnam and its association with frailty

OBJECTIVES: To investigate the prevalence of polypharmacy and the common drugs prescribed at discharge in frail and non-frail older inpatients, and to examine whether frailty is significantly associated with polypharmacy. METHODS: Cross-sectional analysis from data of a study about the prevalence of frailty in older inpatients in Vietnam in 2015. Polypharmacy was defined as using ≥5 medications. Frailty was defined by Fried's frailty criteria. RESULTS: There were 382 participants, mean age 76.4, 56.5% female and 35.9% frail. At discharge, 59.2% had polypharmacy (62.8% in the frail and 57.1% in the non-frail). Vitamin/supplements were the most common drugs prescribed, followed by antiplatelets. Frailty was not significantly associated with polypharmacy (adjusted OR 1.45, 95% CI 0.89-2.34). CONCLUSION: The prevalence of polypharmacy at discharge was high in both frail and non-frail participants. The association between frailty and polypharmacy needs to be investigated further in multicentre studies with larger sample sizes in Vietnam.