Behavioral problems in dementia: a factor analysis of the neuropsychiatric inventory.
The aim of this study was to detect behavioral subsyndromes of the 12-item Neuropsychiatric Inventory (NPI). Cross-sectional data of 199 patients with dementia living in the community were collected. Principal component analysis (with Varimax rotation) was used for factor analysis. Results showed the presence of three behavioral subsyndromes: mood/apathy, psychosis, and hyperactivity. Anxiety was regarded as a separate symptom. The subsyndrome mood/apathy was the most common, occurring in almost 80% of the patients, versus psychosis and hyperactivity, which occurred in 37 and 60% of the patients, respectively.
Aalten
Pauline
P
Brain and Behavior Institute, University of Maastricht, The Netherlands.
de Vugt
Marjolein E
ME
Lousberg
Richel
R
Korten
Edith
E
Jaspers
Niek
N
Senden
Birgit
B
Jolles
Jelle
J
Verhey
Frans R J
FR
D000368:Aged; D001526:Behavioral Symptoms / Q000175:diagnosis* / Q000453:epidemiology; D003430:Cross-Sectional Studies; D003704:Dementia / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology*; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D011569:Psychiatric Status Rating Scales; D011599:Psychopathology; D013577:Syndrome