ARYA Atherosclerosis Journal

Comparative interrater reliability of Asian Stroke Disability Scale, modified Rankin Scale and Barthel Index in patients with brain infarction

Document Type : Original Article(s)

Authors

Kavian Ghandehari 1
Kosar Ghandehari 2
Ghazaleh Saffarian-Toosi 3
Shahram Masoudinezhad 3
Siamak Yazdani 3
Ali Nooraddin 3
Saeed Ebrahimzadeh 4
Fahimeh Ahmadi 3
Fatemeh Abrishamchi 3

1 Professor, Cerebrovascular Research Center, Neuroscience Research Center, Department of Neurology, School of Medicine Mashhad University of Medical Sciences, Mashhad, Iran

2 Research Fellow, Cerebrovascular Research Center, Mashhad University of Medical Sciences, Mashhad, Iran

3 Resident, Department of Neurology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

4 Lecturer, Department of Biostatistics, Mashhad University of Medical Sciences, Mashhad, Iran

Abstract
BACKGROUND: This study tried to develop an Asian Stroke Disability Scale (ASDS) and compared its interrater reliability with modified Rankin Scale (mRS) and Barthel Index (BI). METHODS: Three items including self-care, mobility, and daily activities were selected as variables for development of the ASDS. The variables were provisionally graded on a 2- to 4-point scale based on the importance of each item. Each of the variables was categorized into 3 categories. Afterward, 125 rater-patient assessments for each scale (mRS, BI, and ASDS) were performed on 25 stroke patients by 5 raters. For categorization of functional impairment as minor or major, the scores of mRS, BI and ASDS were categorized as ≤2, >2; ≥90, <90 and <3, ≥3, respectively. 125 rater-patient assessments for each of the mRS, BI, and ASDS were performed on 25 stroke patients by five raters. RESULTS: The quantitative variability of BI, mRS, and ASDS scores was not significant (P = 0.379; P = 0.780; and P = 0.835, respectively). Interrater variability of mRS, BI, and ASDS scores based on qualitative categorization was not significant (P = 1.000; P = 0.978; and P = 0.901, respectively). Paired interrater variability of mRS, BI, and ASDS scores based on qualitative categorization was not significant (P > 0.05). CONCLUSION: The ASDS is easy to use, requires less than 1 minute to complete and is as valid as mRS and BI in assessment of functional impairment of patients with stroke. Keywords: Stroke, Disability, Scale, Validation
ARYA Atherosclerosis Journal
Volume 8, Issue 3 - Serial Number 3
September and October 2012
Pages 153-157

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