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Arch Phys Med Rehabil. 2005 Aug;86(8):1616-22.

Test-retest reliability, validity, and sensitivity of the Chedoke arm and hand activity inventory: a new measure of upper-limb function for survivors of stroke.

Author information

1
Orthopedic and Rehabilitation Services, Hamilton Health Sciences, Hamilton, ON, Canada. barreca@hhsc.ca

Abstract

OBJECTIVES:

To estimate the test-retest reliability and validity of the Chedoke Arm and Hand Activity Inventory (CAHAI) and to test whether the CAHAI was more sensitive to change in upper-limb function than the Impairment Inventory of the Chedoke-McMaster Stroke Assessment (CMSA) and the Action Research Arm Test (ARAT).

DESIGN:

Construct validation process.

SETTING:

Inpatient/outpatient rehabilitation facilities.

PARTICIPANTS:

Stratified sample of 39 survivors of stroke: 24 early (mean age, 71.4 y; mean days poststroke, 27.3) and 15 chronic (mean age, 64.0 y; mean days poststroke, 101.7).

INTERVENTION:

Regular therapy.

MAIN OUTCOME MEASURES:

Intraclass correlation coefficients (ICCs), receiver operating characteristic (ROC), standard error of measurement, and correlation coefficients.

RESULTS:

High interrater reliability was established with an ICC of .98 (95% confidence interval [CI], .96-.99). The minimal detectable change score was 6.3 CAHAI points. Higher correlations were obtained between the CAHAI and the ARAT and CMSA scores compared with the CMSA shoulder pain scores (1-sided, P=.001). Areas under the ROC curves were as follows: CAHAI, .95 (95% CI, 0.87-1.00); CMSA, .76 (95% CI, .61-.92); and ARAT, .88 (95% CI, 0.76-1.00).

CONCLUSIONS:

High interrater reliability and convergent and discriminant cross-sectional validity were established for the CAHAI. The CAHAI is more sensitive to clinically important change than the ARAT.

PMID:
16084816
DOI:
10.1016/j.apmr.2005.03.017
[Indexed for MEDLINE]

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