DIAGNOSTIC PLOTS IN COX REGRESSION-MODEL
DIAGNOSTIC PLOTS IN COX REGRESSION-MODEL
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DOI：
10.2307/2532643
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发表时间：
1991-09-01
期刊：
影响因子：
1.9
通讯作者：
WANG, PC
中科院分区：
文献类型：
--
作者：
CHEN, CH;WANG, PC
两个诊断图被用来验证COX比例风险模型的拟合。开发了添加变量图来评估在模型中添加协变量的效果。构造的变量图被用于检测拟合协变量的非线性。这两个情节也有助于确定对感兴趣的问题的有影响力的观察。这些方法以多发性骨髓瘤和肺癌的数据为例进行了说明。
Two diagnostic plots are presented for validating the fitting of a Cox proportional hazards model. The added variable plot is developed to assess the effect of adding a covariate to the model. The constructed variable plot is applied to detect nonlinearity of a fitted covariate. Both plots are also useful for identifying influential observations on the issues of interest. The methods are illustrated on examples of multiple myeloma and lung cancer data.