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pubmed:abstractText |
Psychotic symptoms occur in 30%-60% of individuals with Alzheimer disease (AD) with psychosis (AD+P). AD+P identifies a distinct AD phenotype, with increased severity of cognitive impairment and a more rapid cognitive decline. Using factor and cluster analysis, we previously proposed two subtypes of patients with AD+P, one characterized by misidentifications and hallucinations (Misidentification), the other by persecutory delusions (Paranoid). We hypothesized that these two groups differed in their patterns of cognitive impairment, compared with AD subjects without psychosis.
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