Explained variation for survival models

被引：228

作者：

Royston, Patrick ^{[1
]}

机构：

[1] MRC, Clin Trials Unit, Canc Grp, London NW1 2DA, England

来源：

STATA JOURNAL | 2006年 / 6卷 / 01期

基金：

英国医学研究理事会;

关键词：

st0098; censored survival data; regression models; index of determination; explained variation; explained randomness; information gain;

D O I：

10.1177/1536867X0600600105

中图分类号：

O1 [数学]; C [社会科学总论];

学科分类号：

03 ; 0303 ; 0701 ; 070101 ;

摘要：

This article introduces a new measure of explained variation for use with censored survival data. It is a modified version of a measure previously described by John O'Quigley and colleagues, itself a modification of Nagelkerke's earlier proposal for a general index of determination. I describe Stata programs str2ph, which implements the new measure, and str2d, which implements a measure proposed in 2004 by Royston and Sauerbrei. I provide examples with real data.

引用

页码：83 / 96

页数：14

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