Royal Physiotherapy Clinic, University of Toronto, Toronto, ON, Canada.
J Rehabil Med. 2010 Jan;42(1):90-2. doi: 10.2340/16501977-0477.
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.
A retrospective longitudinal study of 24 inpatients (mean age 83 years (standard deviation 7)) on a geriatric rehabilitation unit.
The primary reasons for admission were deconditioning (n=9) and hip fracture (n=7).
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.
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.
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.
评估 Chedoke-McMaster 卒中评估活动量表和临床结局变量量表（COVS）这两种功能性移动性测量工具的结构效度。
在老年康复病房对 24 名住院患者（平均年龄 83 岁，标准差 7）进行的回顾性纵向研究。
入院的主要原因是身体不适（9 人）和髋部骨折（7 人）。
我们检验了以下假设：入院和出院时的活动量表和 COVS 评分以及住院期间的变化评分之间存在相关性。还使用效应大小和标准化反应均值来估计纵向结构效度。
每个测量指标的得分之间的相关性在子量表和总量表上的范围从 r=0.59-0.93（p<0.01）。活动量表和 COVS 的效应大小分别为 1.53 和 1.43。活动量表和 COVS 的标准化反应均值分别为 1.83 和 2.30。
尽管研究结果支持这两种测量工具的有效性，但在该人群中，COVS 似乎比活动量表更有效和敏感。需要更大的研究来证实这些发现。
