[Show abstract][Hide abstract] ABSTRACT: To examine the reliability and validity of a new wheelchair collision test (WCT) for screening behavioral unilateral neglect in people with stroke.
A total of 19 patients with left hemiplegia resulting from first-ever stroke (mean +/- SD, 61.9 +/- 25.8 days after onset) were examined with the WCT, whereby the patient was asked to propel a wheelchair to pass four round chairs arranged in two rows. Separate tests were done using two different distances between the chairs: 120 and 140 cm. The number of collisions with the chairs was recorded. The Catherine Bergego Scale was used to evaluate behavioral unilateral neglect. Because unilateral neglect has an unfavorable impact on rehabilitation, the FIMtrade mark instrument was used to determine the function of daily activities.
Test-retest reliability ranged from 0.68 to 0.97 in different situations in the WCT. The rate of agreement tested by Kappa statistics between the WCT and Catherine Bergego Scale was higher when the distance between chairs was 120 cm than when the distance was 140 cm (0.68 vs. 0.58). Spearman's rank-correlation coefficient between the WCT and Catherine Bergego Scale was 0.72 (P < 0.001) if the distance between the chairs was 120 cm and 0.75 (P < 0.001) if the distance was 140 cm. The WCT and Catherine Bergego Scale correlated well with the FIM instrument. Spearman's rank-correlation coefficient between the Catherine Bergego Scale and FIM total score was -0.70 (P < 0.001).
The WCT is a simple screening test with high test-retest reliability and validity to evaluate behavioral unilateral neglect.
No preview · Article · Mar 2005 · American Journal of Physical Medicine & Rehabilitation
[Show abstract][Hide abstract] ABSTRACT: Multiple regression analysis was performed in 87 stroke patients who were admitted to a rehabilitation hospital to predict the total motor subscore of the Functional Independence Measure (FIM) at discharge. In addition to the total cognitive subscore of the FIM at admission, age, and days from stroke onset to admission, the total motor subscore of the FIM at admission or its reciprocal number was added to independent variables. The correlation coefficients between the predicted and actual values were .88 (ordinary regression) and .93 (reciprocal regression) in the validation group (44 stroke patients). The median of the residuals (i.e, absolute values of subtraction of predicted motor-FIM from actual motor-FIM at discharge) of the reciprocal prediction (4.57) was significantly smaller than that of the ordinary prediction (6.26). In conclusion, the reciprocal prediction of regression analysis provided a more precise prediction without additional complex calculations.
No preview · Article · Feb 2005 · Journal of stroke and cerebrovascular diseases: the official journal of National Stroke Association