Article

Objective: To determine the measurement properties and
diagnostic utility of the JFK Coma Recovery Scale­Revised
(CRS-R).
Design: Analysis of interrater and test-retest reliability, internal
consistency, concurrent validity, and diagnostic accuracy.
Setting: Acute inpatient brain injury rehabilitation hospital.
Participants: Convenience sample of 80 patients with severe
acquired brain injury admitted to an inpatient Coma Intervention
Program with a diagnosis of either vegetative state
(VS) or minimally conscious state (MCS).
Interventions: Not applicable.
Main Outcome Measures: The CRS-R, the JFK Coma
Recovery Scale (CRS), and the Disability Rating Scale (DRS).
Results: Interrater and test-retest reliability were high for
CRS-R total scores. Subscale analysis showed moderate to
high interrater and test-retest agreement although systematic
differences in scoring were noted on the visual and oromotor/
verbal subscales. CRS-R total scores correlated significantly
with total scores on the CRS and DRS indicating acceptable
concurrent validity. The CRS-R was able to distinguish 10
patients in an MCS who were otherwise misclassified as in a
VS by the DRS.
Conclusions: The CRS-R can be administered reliably by
trained examiners and repeated measurements yield stable estimates
of patient status. CRS-R subscale scores demonstrated
good agreement across raters and ratings but should be used
cautiously because some scores were underrepresented in the
current study. The CRS-R appears capable of differentiating
patients in an MCS from those in a VS

Langue : ANGLAIS