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Psychometric Evaluation of the DMSS-4 in a Cohort of Elderly Post-operative Hip Fracture Patients with Delirium.

Published online by Cambridge University Press:  15 April 2020

D. Adamis ,
A. De Jonghe ,
B.C. Van Munster ,
S.E.J.A. De Rooij  and
D. Meagher
D. Adamis
Affiliation:
Psychiatry, Sligo Mental Health Services, Sligo, Ireland
A. De Jonghe
Affiliation:
Faculty of Medicine AMC, University of Amsterdam, Amsterdam, Netherlands
B.C. Van Munster
Affiliation:
Faculty of Medicine AMC, University of Amsterdam, Amsterdam, Netherlands
S.E.J.A. De Rooij
Affiliation:
Faculty of Medicine AMC, University of Amsterdam, Amsterdam, Netherlands
D. Meagher
Affiliation:
Psychiatry, Cognitive Impairment Research Group (CIRG) Graduate Entry Medical School University of Limerick, Limerick, Ireland

Abstract

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Introduction

Delirium is a common neuropsychiatric syndrome with considerable heterogeneity in clinical profile. Rapid reliable identification of clinical subtypes can allow for more targeted and research efforts.

Aims

The aims of this study are to evaluate the concurrent validity (agreement) and reliability (internal consistency) of DMSS-4 in a new cohort of delirious hospitalised patients.

Methods

We explored the concordance in attribution of motor subtypes between the DMSS-4 and the original DMSS (assessed cross-sectionally) and subtypes defined longitudinally using the Delirium Symptom Interview (DSI) method.

Results

We included 118 elderly patients developing DSM-IV delirium after hip-surgery [mean age 87.0±6.5 years; range 65–102; 66% females; 28 (23.7%) had no previous history of cognitive impairment]. Concordance was high for both the DMSS-4 and original DMSS (k=0.80), and for the DMSS-4 and DSI methods (k=0.82). The DMSS-4 also demonstrated high internal consistency (McDonald's omega = 0.78). The DMSS-11 and DMSS-4 had higher inclusion for motor subtypes than the DSI method.

Conclusions

The DMSS-4 provides an ultra-rapid means of identifying motor-defined clinical subtypes of delirium and is a reliable alternative to the more detailed and time-consuming original DMSS and DSI methods of subtype attribution. The DMSS-4 can be readily applied to further studies of causation, treatment and outcome in delirium.

Type
Article: 0768
Information
European Psychiatry , Volume 30 , Issue S1: Abstracts of the 23rd European Congress of Psychiatry , March 2015 , pp. 1
Copyright
Copyright © European Psychiatric Association 2015
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