Funnel plots for comparing institutional performance

被引：616

作者：

Spiegelhalter, DJ ^{[1
]}

机构：

[1] MRC, Biostat Unit, Inst Publ Hlth, Cambridge CB2 2SR, England

来源：

STATISTICS IN MEDICINE | 2005年 / 24卷 / 08期

关键词：

control charts; outliers; over-dispersion; institutional profiling; ranking;

D O I：

10.1002/sim.1970

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

'Funnel plots' are recommended as a graphical aid for institutional comparisons, in which an estimate of an underlying quantity is plotted against an interpretable measure of its precision. 'Control limits' form a funnel around the target outcome, in a close analogy to standard Shewhart control charts. Examples are given for comparing proportions and changes in rates, assessing association between outcome and volume of cases, and dealing with over-dispersion due to unmeasured risk factors. We conclude that funnel plots are flexible, attractively simple, and avoid spurious ranking of institutions into 'league tables'. Copyright (c) 2004 John Wiley ' Sons, Ltd.

引用

页码：1185 / 1202

页数：18

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