A classification system for delirium subtyping with the use of a commercial mobility monitor

Godfrey, A., Conway, R., Leonard, M., Meagher, D. and Olaighin, G. (2009) A classification system for delirium subtyping with the use of a commercial mobility monitor. Gait & Posture, 30 (2). pp. 245-252. ISSN 0966-6362 doi: 10.1016/j.gaitpost.2009.05.014

Abstract/Summary

The usefulness of motor subtypes of delirium is unclear due to inconsistency in subtyping methods and a lack of validation with objective measures of activity. The activity of 40 patients was measured over 24 h with a commercial accelerometer-based activity monitor. Accelerometry data from patients with DSM-IV delirium that were readily divided into hyperactive, hypoactive and mixed motor subtypes, were used to create classification trees that were Subsequently applied to the remaining cohort to define motoric subtypes. The classification trees used the periods of sitting/lying, standing, stepping and number of postural transitions as measured by the activity monitor as determining factors from which to classify the delirious cohort. The use of a classification system shows how delirium subtypes can be categorised in relation to overall activity and postural changes, which was one of the most discriminating measures examined. The classification system was also implemented to successfully define other patient motoric subtypes. Motor subtypes of delirium defined by observed ward behaviour differ in electronically measured activity levels. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/15233
Item Type	Article
Refereed	Yes
Divisions	Science
Uncontrolled Keywords	Activity monitor, Classification tree, Delirium, Subtype, Accelerometer, COGNITIVE TEST, RATING-SCALE, VALIDATION, MANAGEMENT, SYMPTOMS, PATIENT
Download/View statistics	View download statistics for this item