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Research Studies is a monthly compilation of research articles funded by AHRQ or authored by AHRQ researchers and recently published in journals or newsletters.
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Chatterjee S, Bali V, Carnahan RM
Anticholinergic burden and risk of cognitive impairment in elderly nursing home residents with depression.
This study evaluated whether elderly nursing home residents with mild depression and intact cognition experienced cognitive impairment after using anticholinergic drugs. The study was a population-based nested case-control study using Minimum Data Set (MDS)-linked Medicare data where the base cohort were patients 65 years and older with depression who had intact cognition. Cumulative anticholinergic burden was measured within 30, 60, and 90 days preceding the event (cognitive measurement) date using the Anticholinergic Drug Scale (ADS). The end sample compared 3707 cases with mild-to-moderate cognition to 3707 matched controls with intact cognition. There was no association with cumulative anticholinergic exposure at 30 days with cognitive impairment, but the odds of cognitive impairment increased with exposure 60 and 90 days before the event date. This study concludes there should be concern in using anticholinergic drugs for longer than 30 days with elderly nursing home residents.
Citation: Chatterjee S, Bali V, Carnahan RM . Anticholinergic burden and risk of cognitive impairment in elderly nursing home residents with depression. Res Social Adm Pharm 2020 Mar;16(3):329-35. doi: 10.1016/j.sapharm.2019.05.020..
Keywords: Elderly, Nursing Homes, Long-Term Care, Depression, Behavioral Health, Medication, Neurological Disorders, Adverse Drug Events (ADE), Adverse Events, Patient Safety