Article

OBJECTIVES: To examine the internal consistency, test-retest reliability,
validity, and responsiveness of the shortened version of the Disabilities of the
Arm, Shoulder and Hand (QuickDASH) questionnaire in persons with upper limb
amputation. DESIGN: Cross-sectional and longitudinal. SETTING: Three sites
participating in the U.S. Department of Veterans Affairs Home Study of the DEKA
Arm. PARTICIPANTS: A convenience sample of upper limb amputees (N=44).
INTERVENTIONS: Training with a multifunction upper limb prosthesis. MAIN OUTCOME
MEASURES: Multiple outcome measures including the QuickDASH were administered
twice within 1 week, and for a subset of 20 persons, after completion of
in-laboratory training with the DEKA Arm. Scale alphas and intraclass correlation
coefficient type 3,1 (ICC3,1) were used to examine reliability. Minimum
detectable change (MDC) scores were calculated. Analyses of variance, comparing
QuickDASH scores by the amount of prosthetic use and amputation level, were used
for known-group validity analyses with alpha set at .05. Pairwise correlations
between QuickDASH and other measures were used to examine concurrent validity.
Responsiveness was measured by effect size (ES) and standardized response mean
(SRM). RESULTS: QuickDASH alpha was .83, and ICC was .87 (95% confidence
interval, .77-.93). MDC at the 95% confidence level (MDC95%) was 17.4. Full- or
part-time prosthesis users had better QuickDASH scores compared with
nonprosthesis users (P=.021), as did those with more distal amputations at both
baseline (P=.042) and with the DEKA Arm (P=.024).
The QuickDASH was correlated
with concurrent measures of activity limitation as expected. The ES and SRM after
training with the DEKA Arm were 0.6. CONCLUSIONS: This study provides evidence of
reliability and validity of the QuickDASH in persons with upper limb amputation.
Results provide preliminary evidence of responsiveness to prosthetic device
type/training. Further research with a larger sample is needed to confirm results.
CI - Copyright (c) 2015 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS