Assessment of agreement of a quantitative variable: a new graphical approach
Assessment of agreement of a quantitative variable: a new graphical approach
复制标题
DOI：
10.1016/s0895-4356(03)00164-1
复制
发表时间：
2003-10-01
影响因子：
7.2
通讯作者：
Werneck, GL
中科院分区：
文献类型：
--
作者：
Luiz, RR;Costa, AJL;Werneck, GL
在临床或流行病学研究中，变量的测量总是隐含着一定程度的误差。由于不可能控制各种变异来源，因此评估测量的可靠性至关重要。否则，一致性分析必须考虑到研究中的测量的“临床”解释，因为它的实际用途是至关重要的。在这篇文章中，我们提出了一种新的方法来评估定量测量的可靠性。我们使用的图形方法熟悉的统计学家和数据分析师的生物医学领域，关联到它的解释的基础上的比例一致的情况下，有用的功能。我们相信，建议的图形方法可以作为一种补充，或作为替代，Altman-Bland方法的协议分析。它允许对一致性进行简单的解释，考虑到观察者或方法之间差异的“临床”重要性。此外，它还允许通过生存分析技术分析可靠性或一致性。(C)2003年爱思唯尔公司All rights reserved.
In clinical or epidemiologic research, the measurement of variables always implies some degree of error. Because it is impossible to control the various sources of variation, the assessment of the reliability of a measurement is essential. Otherwise, concordance analysis must take into account the "clinical" interpretation of the measurement under study, because its practical usefulness is of central importance. In this article, we propose a new approach to assess the reliability of a quantitative measurement. We use a graphical approach familiar to statisticians and data analysts of the biomedical area, associating to it the useful feature of interpretation based on the proportion of concordant cases. We believe that the proposed graphical approach can serve as a complement, or as a alternative, to the Altman-Bland method for agreement analysis. It allows a simple interpretation of agreement that takes into account the "clinical" importance of the differences between observers or methods. In addition, it allows the analysis of reliability or agreement, by means of survival analysis techniques. (C) 2003 Elsevier Inc. All rights reserved.