Article

OBJECTIVE: To evaluate reproducibility (reliability and agreement) of the
Brachial Assessment Tool (BrAT), a new patient-reported outcome measure for
adults with traumatic brachial plexus injury (BPI). DESIGN: Prospective
repeated-measure design. SETTING: Outpatient clinics. PARTICIPANTS: Adults with
confirmed traumatic BPI (N=43; age range, 19-82y). INTERVENTIONS: People with BPI
completed the 31-item 4-response BrAT twice, 2 weeks apart. Results for the 3
subscales and summed score were compared at time 1 and time 2 to determine
reliability, including systematic differences using paired t tests, test retest
using intraclass correlation coefficient model 1,1 (ICC1,1), and internal
consistency using Cronbach alpha. Agreement parameters included standard error of
measurement, minimal detectable change, and limits of agreement. MAIN OUTCOME
MEASURE: BrAT. RESULTS: Test-retest reliability was excellent (ICC1,1=.90-.97).
Internal consistency was high (Cronbach alpha=.90-.98). Measurement error was
relatively low (standard error of measurement range, 3.1-8.8). A change of >4 for
subscale 1, >6 for subscale 2, >4 for subscale 3, and >10 for the summed score is
indicative of change over and above measurement error. Limits of agreement ranged
from +/-4.4 (subscale 3) to 11.61 (summed score). CONCLUSIONS: These findings
support the use of the BrAT as a reproducible patient-reported outcome measure
for adults with traumatic BPI with evidence of appropriate reliability and
agreement for both individual and group comparisons. Further psychometric testing
is required to establish the construct validity and responsiveness of the BrAT.
CI - Copyright (c) 2017 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS