Explained variation for survival models

被引:222
作者
Royston, Patrick [1 ]
机构
[1] MRC, Clin Trials Unit, Canc Grp, London NW1 2DA, England
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
收藏
页码:83 / 96
页数:14
相关论文
共 16 条