Validation of the activity inventory of the Chedoke-McMaster stroke assessment and the clinical outcome variables scale to evaluate mobility in geriatric clients.
OBJECTIVE
To evaluate the construct validity of the Activity Inventory of the Chedoke-McMaster Stroke Assessment and the Clinical Outcome Variables Scale (COVS), 2 measures of functional mobility.


METHODS
A retrospective longitudinal study of 24 inpatients (mean age 83 years (standard deviation 7)) on a geriatric rehabilitation unit.


METHODS
The primary reasons for admission were deconditioning (n=9) and hip fracture (n=7).


METHODS
We tested hypotheses that Activity Inventory and COVS scores at admission and discharge, and change scores during hospital stay would correlate. Longitudinal construct validity was also estimated using effect size and standardized response mean.


RESULTS
Correlations between scores on each measure ranged from r=0.59-0.93 across subscales and total scales (p<0.01). The effect size of the Activity Inventory and the COVS was 1.53 and 1.43, respectively. The standardized response mean of the Activity Inventory and the COVS was 1.83 and 2.30, respectively.


CONCLUSIONS
Although findings support the validity of both measures, the COVS appears more efficient and sensitive than the Activity Inventory to change in this population. A larger study is needed to confirm these findings.
Sacks
Lauren
L
Royal Physiotherapy Clinic, University of Toronto, Toronto, ON, Canada.
Yee
Kristen
K
Huijbregts
Maria
M
Miller
Patricia A
PA
Aggett
Tanya
T
Salbach
Nancy M
NM
D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D015577:Geriatric Assessment; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D009043:Motor Activity / Q000502:physiology; D017063:Outcome Assessment, Health Care; D020127:Recovery of Function; D012189:Retrospective Studies; D020521:Stroke / Q000503:physiopathology; D000071939:Stroke Rehabilitation; D016138:Walking / Q000502:physiology