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Representative studies evaluating the prevalence of polypharmacy
Representative U.S.-based studies from January 1994 to September 2009.
Abbreviations: ER, emergency room; HEDIS DAE, Healthcare Effectiveness Data and Information Set Drugs to Avoid in the Elderly list; MAI, Medication Appropriateness Index; PC, prospective cohort; RC, retrospective cohort; VA, Veterans Affairs; XS, cross-sectional.
aMedications deemed inappropriate for those with underlying cognitive dysfunction.
