Prevalence of Beers Criteria Medications Among Elderly Patients in a Military Hospital

Objective: This study aims to examine potentially inappropriate medication (PIM) prevalence and factors that affect the use of PIMs in a military treatment facility. Method: Admission and discharge medication lists of 60 patients aged ≥65 years were retrospectively reviewed by a clinical pharmacist and a member of the study team for the presence of PIM using the 2012 Beers Criteria. Patients included were those discharged between December 2012 and September 2013 from the Womack Army Medical Center, Internal Medicine unit. Results: Among the 60 patients evaluated, 44 (73%) were on at least one PIM at admission, whereas the prevalence of PIM at discharge (30 patients) was 50% (p < .001). The top three classes of PIM at admission were antihistamines (11, 15.3%), nonsteroidal anti-inflammatory drugs (10, 13.9%), and benzodiazepines (6, 8.3%). Patients on >10 medications at admission (37, 62%) were 4 times more likely to have a PIM (p < .001). Conclusion: Data showed a high and a previously unknown PIM prevalence among older adults in a U.S. military treatment facility.