Assessment of Medication Management Skills in Older Outpatients

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Abstract
OBJECTIVE: To identify risk factors for poor medication management skills in community-dwelling older adults by using a performance-based medication management assessment instrument. DESIGN: A cross-sectional investigation. SETTING: A university outpatient geriatric assessment clinic. PARTICIPANTS: Fifty-nine community-dwelling older adults aged 62–102 years. MEASUREMENTS: Patients were assessed on their ability to perform medication management tasks, including reading prescription labels, interpreting medication instructions, opening safety-capped vials, removing tablets from vials, and differentiating tablet colors. The Mini-Mental State Examination (MMSE) was administered and the Katz index of activities of daily living was obtained during the same clinic visit. RESULTS: Cognitive impairment (MMSE <24) and physical dependency (Katz ≥1) were both found to be risk factors for the inability to perform individual tasks and independent risk factors for poor overall outcome on the medication management assessment, odds ratios (95% confidence interval) 9.39 (7.82 to 10.96) and 7.24 (5.60 to 8.88), respectively. Age, gender, education, or number of prescription medications were not associated with the ability to perform individual tasks or to overall outcome on the medication management assessment. CONCLUSIONS: Cognitive deficits and physical dependency appear to be strong predictors for the inability to perform tasks associated with medication management. Assessment of medication management skills in older adults living in the community may help identify specific problems, aid in planning patient care, and promote independence.

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