Please use this identifier to cite or link to this item: https://observatorio.fm.usp.br/handle/OPI/31817
Title: Neuropsychiatric Inventory in Community-Dwelling Older Adults with Mild Cognitive Impairment and Dementia
Authors: NUNES, Paula VillelaSCHWARZER, Monise CarolineLEITE, Renata Elaine ParaizoFERRETTI-REBUSTINI, Renata Eloah de LucenaPASQUALUCCI, Carlos AugustoNITRINI, RicardoRODRIGUEZ, Roberta DiehlNASCIMENTO, Camila FernandesOLIVEIRA, Katia Cristina deGRINBERG, Lea TenenholzJACOB-FILHO, WilsonLAFER, BenySUEMOTO, Claudia Kimie
Citation: JOURNAL OF ALZHEIMERS DISEASE, v.68, n.2, p.669-678, 2019
Abstract: Background: Behavioral and psychological symptoms (BPSD) can be a prodrome of dementia, and the Neuropsychiatric Inventory (NPI) is widely used for BPSD evaluation. Objective: To compare the prevalence of BPSD according to cognitive status, and to determine NPI cutoffs that best discern individuals with mild cognitive impairment (MCI) and dementia from those without dementia. Methods: We included 1,565 participants (mean age = 72.7 +/- 12.2 years, 48% male). BPSD and cognitive status were assessed with the NPI and the Clinical Dementia Rating (CDR). We used multivariable logistic regression models to investigate the association of BPSD with cognitive status. The area under the curve (AUC) was used to assess model discrimination, and to determine the best NPI cutoff for MCI and dementia. Results: Participants were cognitively normal (CDR = 0; n = 1,062), MCI (CDR = 0.5; n = 145), or dementia (CDR >= 1.0, n = 358). NPI symptoms were more frequent in dementia and MCI when compared to cognitively normal. Higher odds for delusions, hallucinations, disinhibition, and psychomotor alterations were found among participants with dementia and MCI than in those who were cognitively normal. The best NPI cutoff to discern participants with dementia from those cognitively normal was 11 (AUC = 0.755). Poor discrimination (AUC = 0.563) was found for the comparison of MCI and those cognitively normal. Conclusions: We found an increase in BPSD frequencies across the continuum of cognitive impairment. BPSD severity and frequency in MCI was more similar to individuals cognitively normal than with dementia. NPI scores >= to 11 in individuals with no diagnosis of dementia can support the decision for further investigation of dementia.
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LIM/15 - Laboratório de Investigação em Neurologia


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