Test-retest reliability and validity of the comprehensive activities of daily living measure in patients with stroke.
OBJECTIVE
To examine the test-retest reliability, convergent validity, and predictive validity of the comprehensive activities of daily living (CADL) measure in patients with stroke.


METHODS
A repeated-assessments design, 10-14 days apart, was used to examine test-retest reliability in 70 patients. In the validity study, a further 168 patients were assessed at 6 months and 1 year after stroke.


METHODS
Three rehabilitation units.


METHODS
The CADL measure, providing Rasch-calibrated scores, assesses the entire continuum of basic and instrumental activities of daily living. Both domains (self-care and mobility) of the stroke-specific quality of life questionnaire (SS-QOL) were used to examine the convergent validity. The summary score of the SS-QOL was used as the criterion for examining the predictive validity of the CADL measure.


RESULTS
The test-retest reliability was excellent (intraclass correlation coefficient = 0.96). The CADL measure and both domains of the SS-QOL exhibited strong associations at 6 months and 1 year post-stroke (Pearson's r ≥ 0.77). The score of the CADL at 6 months post-stroke was highly correlated with that of the SS-QOL at 1 year post-stroke (r = 0.75).


CONCLUSIONS
The CADL measure showed satisfactory test-retest reliability, convergent validity, and predictive validity in patients with stroke.
School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan.
I-Ping
IP
Hsueh
Chun-Hou
CH
Wang
Tsan-Hon
TH
Liou
Chia-Huang
CH
Lin
Ching-Lin
CL
Hsieh
D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology; D011237:Predictive Value of Tests; D011788:Quality of Life; D015203:Reproducibility of Results; D012648:Self Care; D020521:Stroke / Q000503:physiopathology / Q000523:psychology; D000071939:Stroke Rehabilitation; D011795:Surveys and Questionnaires; D013997:Time Factors; D034941:Upper Extremity / Q000502:physiology