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Titre : | Coma Recovery ScaleRevised: Evidentiary Support for Hierarchical Grading of Level of Consciousness (2014) |
Auteurs : | Paul Gerrard ; Ross Zafonte ; Joseph T. Giacino |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (2014/12, 2014) |
Article en page(s) : | p. 2335-2341 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Psychométrie ; Rééducation et réadaptation |
Mots-clés: | Brain Injuries ; Traumatic ; Lésions traumatiques de l'encéphale ; Consciousness Disorders ; Troubles de la conscience ; Psychometrics |
Résumé : |
Objective To investigate the neurobehavioral pattern of recovery of consciousness as reflected by performance on the subscales of the Coma Recovery ScaleRevised (CRS-R). Design Retrospective item response theory (IRT) and factor analysis. Setting Inpatient rehabilitation facilities. Participants Rehabilitation inpatients (N=180) with posttraumatic disturbance in consciousness who participated in a double-blinded, randomized, controlled drug trial. Interventions Not applicable. Main Outcome Measures Scores on CRS-R subscales. Results The CRS-R was found to fit factor analytic models adhering to the assumptions of unidimensionality and monotonicity. In addition, subscales were mutually independent based on residual correlations. Nonparametric IRT reaffirmed the finding of monotonicity. A highly constrained confirmatory factor analysis model, which imposed equal factor loadings on all items, was found to fit the data well and was used to estimate a 1-parameter IRT model. Conclusions This study provides evidence of the unidimensionality of the CRS-R and supports the hierarchical structure of the CRS-R subscales, suggesting that it is an effective tool for establishing diagnosis and monitoring recovery of consciousness after severe traumatic brain injury. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S0003999314004754 |