生存分析资料进行Meta分析时所需主要结局指标的换算方法

The Transformation of the Main Indices for the Meta-analysis of Survival Data

摘要: 生存资料的Meta分析越来越多,但是大部分原始文献并没有全面报告实际死亡数（O）、理论死亡数（E）、风险比（HR）及其方差（V）,本文总结了O-E、HR和V等指标的多种转换公式。希望研究者能够灵活应用这些公式计算生存资料Meta分析的必备指标,并采用HR进行生存资料的Meta分析。

Abstract: Meta-analysis of survival data is becoming more and more. However, most of the original literature did not offer the comprehensive porting: logrank observed events （O）, logrank expected events （E）, hazard ratio （HR） and logrank variance （V）. This paper summarized a variety of methods about how to transform O-E, HR and V. We hope that the researcher can use the methods freely, and use HR in the meta-analysis of survival data.