Confirmatory Factor Analysis of the Delirium Rating Scale Revised-98 (DRS-R98).

Confirmatory Factor Analysis of the Delirium Rating Scale Revised-98 (DRS-R98). J Neuropsychiatry Clin Neurosci. 2015;27(2):e122-7 Authors: Thurber S, Kishi Y, Trzepacz PT, Franco JG, Meagher DJ, Lee Y, Kim JL, Furlanetto LM, Negreiros D, Huang MC, Chen CH, Kean J, Leonard M Abstract Principal components analysis applied to the Delirium Rating Scale-Revised-98 contributes to understanding the delirium construct. Using a multisite pooled international delirium database, the authors applied confirmatory factor analysis to Delirium Rating Scale-Revised-98 scores from 859 adult patients evaluated by delirium experts (delirium, N=516; nondelirium, N=343). Confirmatory factor analysis found all diagnostic features and core symptoms (cognitive, language, thought process, sleep-wake cycle, motor retardation), except motor agitation, loaded onto factor 1. Motor agitation loaded onto factor 2 with noncore symptoms (delusions, affective lability, and perceptual disturbances). Factor 1 loading supports delirium as a single construct, but when accompanied by psychosis, motor agitation's role may not be solely as a circadian activity indicator. PMID: 25923855 [PubMed - in process]
Source: Journal of Neuropsychiatry and Clinical Neurosciences - Category: Psychiatry Tags: J Neuropsychiatry Clin Neurosci Source Type: research