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Cora Loste

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AIM: The main objective was to determine the prevalence of prescribing issues in HIV-infected subjects ≥65 years according to the Beers and STOPP/START criteria and drug-drug interactions (Liverpool website). Secondary objectives were to assess the concordance between Beers and STOPP/START criteria in our population, and to identify the drugs most frequently involved in the prescribing issues. METHODS: Cross-sectional cohort study based on a systematic review of the electronic drug prescriptions of 91 HIV-infected patients aged ≥65 years. Discrepancies between prescription criteria were assessed using crosstabs and compared using the Chi-square test or Fisher exact test. RESULTS: The mean age was 72.1 (5.6) years, 75.8% had ≥3 comorbidities, and 59.3% polypharmacy. Prescribing issues were identified in 87.9%; 71.4% by STOPP/START and 45.1% by Beers. Comparing both criteria, 56.9% of prescribing issues by STOPP/START were detected by Beers, while 92.5% of those detected by the Beers criteria were detected by STOPP/START (p<0.001). Orange/red flag interactions were found in 45.1%: 3 severe (red) in 2 patients (2.2%). The most frequent drugs involved in prescribing issues were benzodiazepines (>30%). Cobicistat was the drug most frequently involved in interactions (42.9%). CONCLUSIONS: The prevalence of prescribing issues among older HIV-infected persons gives cause for concern, as it is almost 90%. Optimization strategies, including a critical review of the treatment plan, should be implemented in clinical routine by a multidisciplinary team, in particular in patients with multiple comorbidities and polypharmacy. The STOPP/START criteria should be recommended for European populations, since they seem to better detect prescribing issues.