• Jun-Liang Yuan, Askiel Bruno, Tao Li, Shu-Juan Li, Xiao-Dan Zhang, Hai-Ying Li, Ke Jia, Wei Qin, Andrew C N Chen, and Wen-Li Hu.
• Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.
• Eur. Neurol. 2012 Jan 1;67(4):206-10.

BackgroundRecently, a simplified modified Rankin Scale (mRS) questionnaire (smRSq) showed good reliability but has not been tested for its validity by its original creators. Our study aimed to test its reliability and validity in Chinese stroke patients.MethodsRandomly chosen paired raters scored the smRSq, the conventional mRS, and the NIH Stroke Scale (NIHSS) face-to-face in 150 hospitalized stroke patients. Inter-rater reliability and concurrent validity were assessed for this translated questionnaire.ResultsFor inter-rater reliability of the smRSq, the overall agreement among the raters was 84%, the κ was 0.79 (95% CI 0.72-0.87), and the κw was 0.91 (95% CI 0.88-0.94). For inter-rater reliability of the mRS, the overall agreement among the raters was 81%, the κ was 0.75 (95% CI 0.67-0.83), and the κw was 0.88 (95% CI 0.84-0.92). The agreement between the mRS and smRSq was 71%, κ = 0.63 (95% CI 0.54-0.71), and κw = 0.83 (95% CI 0.79-0.88). The correlation between the NIHSS and the smRSq (concurrent validity) was moderate (Spearman's correlation coefficient 0.70, p < 0.0001).ConclusionsOur results confirm the value of the smRSq in the assessment of stroke functional outcome in China. As this is a novel stroke tool, further validations are needed.Copyright © 2012 S. Karger AG, Basel.

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