Estimating the Accuracy of the Chedoke-McMaster Stroke Assessment Predictive Equations for Stroke Rehabilitation

被引:9
作者
Dang, Mia [1 ]
Ramsaran, Kalinda D. [1 ]
Street, Melissa E. [1 ]
Syed, S. Noreen [1 ]
Barclay-Goddard, Ruth [3 ]
Stratford, Paul W. [1 ,2 ]
Miller, Patricia A.
机构
[1] McMaster Univ, Sch Rehabil Sci, MScPT Program, Hamilton, ON L8S 1C7, Canada
[2] McMaster Univ, Dept Clin Epidemiol & Biostat, Hamilton, ON L8S 1C7, Canada
[3] Univ Manitoba, Sch Med Rehabil, Winnipeg, MB, Canada
关键词
clinical application; CMSA; prediction; rehabilitation; stroke; CARE;
D O I
10.3138/ptc.2010-17
中图分类号
R49 [康复医学];
学科分类号
100215 ;
摘要
Purpose: To estimate the predictive accuracy and clinical usefulness of the Chedoke-McMaster Stroke Assessment (CMSA) predictive equations. Method: A longitudinal prognostic study using historical data obtained from 104 patients admitted post cerebrovascular accident was undertaken. Data were abstracted for all patients undergoing rehabilitation post stroke who also had documented admission and discharge CMSA scores. Published predictive equations were used to determine predicted outcomes. To determine the accuracy and clinical usefulness of the predictive model, shrinkage coefficients and predictions with 95% confidence bands were calculated. Results: Complete data were available for 74 patients with a mean age of 65.3 +/- 12.4 years. The shrinkage values for the six Impairment Inventory (II) dimensions varied from -0.05 to 0.09; the shrinkage value for the Activity Inventory (AI) was 0.21. The error associated with predictive values was greater than +/-1.5 stages for the II dimensions and greater than +/-24 points for the AI. Conclusions: This study shows that the large error associated with the predictions (as defined by the confidence band) for the CMSA II and AI limits their clinical usefulness as a predictive measure. Further research to establish predictive models using alternative statistical procedures is warranted.
引用
收藏
页码:334 / 341
页数:8
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