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We attempted to determine the relationship between psychiatric symptoms and psychotropic drug use in persons with Alzheimer's disease based on a multicenter patient registry of 671 community-living persons diagnosed with the disease by published criteria. Logistic regression was performed to determine which symptoms were associated psychotropic use after controlling for age, sex, and Mini-Mental Status Examination (MMSE) score. At least one psychotropic drug was reported by 31% of patients, and 66% had at least one psychiatric symptom. Antipsychotics were associated with a lower MMSE score (odds ratio = 0.92, 95% confidence interval 0.88-0.97), emotional lability (OR = 4.52, 95% CI 1.69-11.94), and hallucinations (OR = 6.54, 95% CI 2.99-14.26). Antidepressants were associated with depressive symptoms (OR = 5.8, 95% CI 2.61-13.46), and benzodiazepines with a lower MMSE score (OR = 0.93, 95% CI 0.90-0.97). Community-living persons with Alzheimer's disease are frequently prescribed psychotropic drugs; however, more than 50% of patients with a psychiatric symptom did not report taking one of these agents. This suggests that alternative therapies and no treatment are also prevalent. |
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