OBJECTIVES: This study aims to identify the prevalence and nature of pre-admission inappropriate prescribing by using the STOPP (screening tool of older people's prescriptions) criteria amongst a sample of hospitalised elderly inpatients in South Australia.
SETTING: Medical, surgical and rehabilitation wards of a public teaching hospital in Adelaide, South Australia.
MAIN OUTCOME MEASURE: Pre-admission prevalence of PIM.
METHOD: Medication management plans of 100 patients of ≥65 years old were prospectively studied to determine the prevalence of pre-admission PIM use. Sixty-five criteria of STOPP were applied to identify PIMs.
RESULTS: The total number of pre-admission medications screened during the study period was 949; the median number of medicines per patient was nine (range 2-28). Overall the STOPP criteria identified 138 PIMs in 60 % of patients. The most frequently encountered PIM was opiates prescribed in patients with recurrent falls (12.3 %), followed by benzodiazepines in fallers (10.1 %) and proton pump inhibitors when prescribed for peptic ulcer disease for long-term at maximum doses (9.4 %). The number of medications were found to have a positive correlation with pre-admission PIM use (r(s) = 0.49, P < 0.01).
CONCLUSIONS: Pre-admission PIM use is highly prevalent among the studied population. Strategies to reduce PIM use should be undertaken by physicians and pharmacists. The use of the STOPP criteria in clinical practice to reduce prescriptions of inappropriate medications requires further investigation.