Interrater Reliability of an Etiologic Classification of Ischemic Stroke

Author:

Johnson C. J.1,Kittner S. J.1,McCarter R. J.1,Sloan M. A.1,Stern B. J.1,Buchholz D.1,Price T. R.1

Affiliation:

1. From the Department of Neurology, Johns Hopkins Bayview (C.J.J.); the Departments of Neurology (S.J.K., M.A.S., T.R.P.) and Epidemiology and Preventive Medicine (S.J.K., R.J.M., M.A.S., T.R.P.), University of Maryland School of Medicine; the Department of Neurology, Johns Hopkins University School of Medicine (C.J.J., B.J.S., D.B.); and the Division of Neurology, Department of Medicine, Sinai Hospital (B.J.S.), Baltimore, Md.

Abstract

Background and Purpose Precise identification of the cause of stroke is critical to research and clinical practice. Published series of ischemic stroke show considerable variation in the proportion of cases classified as atherosclerotic large-vessel disease, lacunar infarct, cardioembolic stroke, stroke of other known cause, and stroke of undetermined etiology. We describe the development and use of an etiology-specific classification of ischemic stroke. The interrater reliability of the classification is then evaluated. Methods A total of 160 cases of ischemic strokes in young adults were reviewed by paired neurologists who assigned cases to prioritized categories. The results of paired ratings were evaluated for each of the potential causes. Interrater agreement was assessed by means of κ, which is the chance-adjusted percent agreement. Results For standard pairs, κ was fair to good for all causes except lacunar stroke (κ=0.31); however, pair-to-pair variation was greatest for lacunar strokes. Strokes of undetermined cause and hematologic/other cause were of borderline fair reliability. Conclusions The utility of a stroke classification system is dependent on its intended use. An etiologic classification is useful in studies of the epidemiology and pathophysiological basis of stroke. Fair to good reliability for an etiologic classification of stroke can be obtained when criteria are explicit.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Advanced and Specialised Nursing,Cardiology and Cardiovascular Medicine,Clinical Neurology

Cited by 171 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3