I got absolutely nothing useful out of this. But then I'm stroke-addled and can't understand a damn thing about stroke.
Responsiveness, Minimal Clinically Important Difference, and Validity of the MoCA in Stroke Rehabilitation
Ching-Yi Wu ,1,2 Shuan-Ju Hung,3 Keh-chung Lin ,3,4 Kai-Hua Chen ,5,6 Poyu Chen,1 and Pei-Kwei Tsay7 1Department of Occupational Therapy and Graduate Institute of Behavioral Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan 2Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan 3School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan 4Division of Occupational Therapy, Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Taipei, Taiwan 5College of Medicine, Chang Gung University, Taoyuan, Taiwan 6Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Chiayi, Taiwan 7School of Nursing, Chang Gung University, Taoyuan, TaiwanCorrespondence should be addressed to Keh-chung Lin; kehchunglin@ntu.edu.tw Received 17 September 2018; Accepted 13 March 2019; Published 14 April 2019
Academic Editor: Lynette Mackenzie
Copyright © 2019 Ching-Yi Wu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Objective. Persons with stroke frequently suffer from cognitive impairment. The Montreal Cognitive Assessment (MoCA), a recently developed screening tool, is sensitive to poststroke cognitive deficits. The present study assessed its psychometric and clinimetric properties (i.e., responsiveness, minimal clinically important difference (MCID), and criterion validity) in stroke survivors receiving rehabilitative therapy.
Method. The MoCA and the Stroke Impact Scale (SIS) were administered to 65 stroke survivors before and after 4 to 5 weeks of therapy. The effect size and standardized response mean (SRM) were calculated for responsiveness. Anchor- and distribution-based methods were used to estimate the MCID. Criterion validity was measured with the Spearman correlation coefficient.
Results. The responsiveness of the MoCA was moderate (SRM=067). Participants exceeding the MCID according to the anchor- and distribution-based approaches were 33 (50.77%) and 20 (30.77%), respectively. Fair to good concurrent validity was reported between the MoCA and the SIS communication subscale. The MoCA had satisfactory predictive validity with the SIS communication and memory subscales.
Conclusion. This study may support the responsiveness, MCID, and criterion validity of the MoCA in stroke populations. Future studies with larger sample sizes are needed to validate the current findings.
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