Improved estimates of floating absolute risk
Improved estimates of floating absolute risk
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DOI：
10.1002/sim.1485
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发表时间：
2004-01-15
影响因子：
2
通讯作者：
Plummer, M
中科院分区：
文献类型：
--
作者：
Plummer, M
浮动绝对风险是呈现多分类风险因素相对风险估计的另一种方式。不是选择风险因素的一个级别作为参考类别，而是为每个级别分配一个“浮动”方差，该方差描述了风险的不确定性，而不参考另一个级别。本文提出了一种估计浮动方差的方法，改进了以前提出的“启发式”方法。这些估计值可以用简单的算法迭代计算。文中还提出了验证浮动方差估计的基准，并给出了浮动可信区间的解释。版权所有(C)2004 John Wiley Sons，Ltd.
Floating absolute risks are an alternative way of presenting relative risk estimates for polychotomous risk factors. Instead of choosing one level of the risk factor as a reference category, each level is assigned a 'floated' variance which describes the uncertainty in risk without reference to another level. In this paper, a method for estimating the floated variances is presented that improves on the previously proposed 'heuristic' method. The estimates may be calculated iteratively with a simple algorithm. A benchmark for validating the floated variance estimates is also proposed and an interpretation of floating confidence intervals is given. Copyright (C) 2004 John Wiley Sons, Ltd.