Prevalence and factors associated with potentially inappropriate medications (PIMs) in elderly patient
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Abstract
Objective: To study prevalence and factors associated with potentially inappropriate medication use in older patients.
Method: The study was an retrospective cross-sectional conducted in 200 patients 60 years and older. These patients received at least one drug from two clinics (Primary Care Unit and Internal Medicine Clinic) in Chiang Rai Prachanukroh Hospital from 1 September 2019 to 31 December 2019. This study reviewed medical records to find inappropriate medical prescriptions according to the American Geriatric Society 2019 Beer Criteria. The factors associated with PIMs were analyzed using multiple logistic regression analyses.
Results: Among 200 older patients, the prevalence of inappropriate medication use was 24.5%. The factors associated with inappropriate medication use were using at least five drugs (Polypharmacy) (adjusted OR 4, 95% CI 1.74-9.21, P 0.001). The most common inappropriate drug groups were skeletal muscle relaxants, central nervous system drugs, analgesics, and nonsteroidal anti-inflammatory drugs.
Conclusions: The prevalence of inappropriate medication use in an outpatient clinic in Chiang Rai Prachanukroh Hospital was 24.5%. Polypharmacy was significantly associated with PIMs. Physicians viewing inappropriate drug use in older patients is necessary.
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