Improving modified rankin scale assessment with a simplified questionnaire

Askiel Bruno; Neel Shah; Chen Lin; Brian Close; David C. Hess; Kristin Davis; Vanessa Baute; Jeffrey A. Switzer; Jennifer L. Waller; Fenwick T. Nichols

doi:10.1161/STROKEAHA.109.571562

Improving modified rankin scale assessment with a simplified questionnaire

Askiel Bruno, Neel Shah, Chen Lin, Brian Close, David C. Hess, Kristin Davis, Vanessa Baute, Jeffrey A. Switzer, Jennifer L. Waller, Fenwick T. Nichols

Research output: Contribution to journal › Article › peer-review

159 Scopus citations

Abstract

BACKGROUND AND PURPOSE-: The modified Rankin Scale (mRS) is a popular primary stroke outcome measure, but its usefulness is limited by suboptimal reliability (inter-rater agreement). METHODS-: We developed and tested the reliability of a simplified mRS questionnaire (smRSq) in 50 patients after stroke seen in outpatient clinics. Randomly chosen paired raters administered the smRSq within 20 minutes of each other and the ratings were blinded until the end of this study. RESULTS-: Agreement among the raters was 78%, the κ statistic was 0.72 (95% CI, 0.58-0.86), and the weighted κw statistic taking into account the extent of disagreement was 0.82 (95% CI, 0.72-0.92). The average time to administer the smRSq was 1.67 minutes. CONCLUSIONS-: The smRSq appears to have very good reliability that is similar to that of a structured interview mRS and is considerably less time-consuming.

Original language	English (US)
Pages (from-to)	1048-1050
Number of pages	3
Journal	Stroke
Volume	41
Issue number	5
DOIs	https://doi.org/10.1161/STROKEAHA.109.571562
State	Published - May 2010

Keywords

Clinometrics
Modified Rankin Scale
Outcome assessment

ASJC Scopus subject areas

Clinical Neurology
Cardiology and Cardiovascular Medicine
Advanced and Specialized Nursing

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10.1161/STROKEAHA.109.571562

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title = "Improving modified rankin scale assessment with a simplified questionnaire",

abstract = "BACKGROUND AND PURPOSE-: The modified Rankin Scale (mRS) is a popular primary stroke outcome measure, but its usefulness is limited by suboptimal reliability (inter-rater agreement). METHODS-: We developed and tested the reliability of a simplified mRS questionnaire (smRSq) in 50 patients after stroke seen in outpatient clinics. Randomly chosen paired raters administered the smRSq within 20 minutes of each other and the ratings were blinded until the end of this study. RESULTS-: Agreement among the raters was 78%, the κ statistic was 0.72 (95% CI, 0.58-0.86), and the weighted κw statistic taking into account the extent of disagreement was 0.82 (95% CI, 0.72-0.92). The average time to administer the smRSq was 1.67 minutes. CONCLUSIONS-: The smRSq appears to have very good reliability that is similar to that of a structured interview mRS and is considerably less time-consuming.",

keywords = "Clinometrics, Modified Rankin Scale, Outcome assessment",

author = "Askiel Bruno and Neel Shah and Chen Lin and Brian Close and Hess, {David C.} and Kristin Davis and Vanessa Baute and Switzer, {Jeffrey A.} and Waller, {Jennifer L.} and Nichols, {Fenwick T.}",

year = "2010",

month = may,

doi = "10.1161/STROKEAHA.109.571562",

language = "English (US)",

volume = "41",

pages = "1048--1050",

journal = "Stroke",

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T1 - Improving modified rankin scale assessment with a simplified questionnaire

AU - Bruno, Askiel

AU - Shah, Neel

AU - Lin, Chen

AU - Close, Brian

AU - Hess, David C.

AU - Davis, Kristin

AU - Baute, Vanessa

AU - Switzer, Jeffrey A.

AU - Waller, Jennifer L.

AU - Nichols, Fenwick T.

PY - 2010/5

Y1 - 2010/5

N2 - BACKGROUND AND PURPOSE-: The modified Rankin Scale (mRS) is a popular primary stroke outcome measure, but its usefulness is limited by suboptimal reliability (inter-rater agreement). METHODS-: We developed and tested the reliability of a simplified mRS questionnaire (smRSq) in 50 patients after stroke seen in outpatient clinics. Randomly chosen paired raters administered the smRSq within 20 minutes of each other and the ratings were blinded until the end of this study. RESULTS-: Agreement among the raters was 78%, the κ statistic was 0.72 (95% CI, 0.58-0.86), and the weighted κw statistic taking into account the extent of disagreement was 0.82 (95% CI, 0.72-0.92). The average time to administer the smRSq was 1.67 minutes. CONCLUSIONS-: The smRSq appears to have very good reliability that is similar to that of a structured interview mRS and is considerably less time-consuming.

AB - BACKGROUND AND PURPOSE-: The modified Rankin Scale (mRS) is a popular primary stroke outcome measure, but its usefulness is limited by suboptimal reliability (inter-rater agreement). METHODS-: We developed and tested the reliability of a simplified mRS questionnaire (smRSq) in 50 patients after stroke seen in outpatient clinics. Randomly chosen paired raters administered the smRSq within 20 minutes of each other and the ratings were blinded until the end of this study. RESULTS-: Agreement among the raters was 78%, the κ statistic was 0.72 (95% CI, 0.58-0.86), and the weighted κw statistic taking into account the extent of disagreement was 0.82 (95% CI, 0.72-0.92). The average time to administer the smRSq was 1.67 minutes. CONCLUSIONS-: The smRSq appears to have very good reliability that is similar to that of a structured interview mRS and is considerably less time-consuming.

KW - Clinometrics

KW - Modified Rankin Scale

KW - Outcome assessment

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Improving modified rankin scale assessment with a simplified questionnaire

Abstract

Keywords

ASJC Scopus subject areas

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