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JOURNAL ARTICLE

Predictors of Inappropriate Proton Pump Inhibitors Use in Elderly Patients

Panagiota Voukelatou, Ioannis Vrettos, Georgia Emmanouilidou, Konstantinos Dodos, Georgia Skotsimara, Dimitra Kontogeorgou, Andreas Kalliakmanis
Current Gerontology and Geriatrics Research 2019, 2019: 7591045
30713553
Introduction. Overutilization of Proton Pump Inhibitors (PPIs) both in ambulatory care and in the inpatient setting possesses economic implications and increases the risk for adverse drug reactions. This study was undertaken to identify factors associated with inappropriate PPI use among consecutively unplanned admissions of elderly patients at the time of admission. Materials and Methods. In 758 patients (54.2% women), mean age 80.3±8.0 (M±1SD), demographic characteristics, and medical and medication history were recorded. Parametric tests and multiple logistic regression analysis were applied to identify the predictors of inappropriate PPI use. Results. 232 patients (30.6%) were receiving PPIs. 37 (4.9%) were receiving PPIs appropriately and 195 (25.7%) were receiving PPIs without a proper indication. Consequently, PPIs prescribing was inappropriate in 195/232 (84%). Moreover, 512 patients (67.5%) were not receiving PPIs appropriately and 14 patients (1.8%) were not receiving PPIs but they had a proper indication. When we compared patients receiving PPIs without a proper indication with those who were not receiving PPIs, a statistical difference was found according to Charlson Comorbidity Index (p≤0.001, U=37922.00), number of diseases (p≤0.001, U=33269.00) and medications (p≤0.001, U=31218.50), Katz Index score (p=0.01, U=45328.00), and the use of blood thinners (p≤0.001, χ 2 =21.15). In multivariate analysis the only independent predictor of inappropriate PPI use was the number of medications (p=0.001, OR=1.16, 95%CI 1.06-1.27). Conclusions. The main predictor of inappropriate PPI use was the number of received medications. Εfforts needed to apply the predefined criteria for PPI prescription and to deprescribe PPIs received inappropriately.

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