Potentially inappropriate medications among elderly patients in community healthcare institutions in Beijing, China.

Pharmacoepidemiology and Drug Safety
Mengyuan FuDennis Ross-Degnan

Abstract

To evaluate potentially inappropriate medications (PIMs) prevalence and predictors in community healthcare institutions (CHIs) for the elderly. We conducted a retrospective observational study, deriving data of patients aged ≥60 from 66 CHIs in Beijing, 2014-2018. The system of Criteria of PIM for Older Adults in China was applied to identify PIMs. The primary outcome was the prevalence of visits with at least one PIM; secondary outcomes were the frequency and rate per thousand visits of specific PIMs. We used descriptive analysis and generalized linear models to analyzed PIMs and the predictors, and marginal effects methods were applied to estimate the mean adjusted PIMs prevalence. Overall, 4 528 884 elderly patient visits from 2014 to 2018 were eligible for inclusion. A total of 719 757 PIMs were detected, with 14.1% of the visits contained at least one PIM. PIM prevalence was significantly correlated with age, number of prescribed medications and number of diagnoses. Overall, 6.0 per thousand elderly patients in CHIs were exposed to at least one high-risk PIM, while 117.5 per thousand were exposed to at least one low-risk PIM. In 2018, 20% of GPs were responsible for more than half of overall PIM visits. Prescribing of PIMs...Continue Reading

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