V2EX log-rank

Log-rank

释义 Definition

log-rank(对数秩检验):一种用于比较两组或多组生存曲线是否存在显著差异的非参数统计检验,常见于生存分析(survival analysis)与临床试验中,尤其适用于删失数据(censored data)。也常写作 logrank test

发音 Pronunciation (IPA)

/l rk/

例句 Examples

The log-rank test showed a significant difference between the two treatments.
对数秩检验显示两种治疗之间存在显著差异。

After adjusting for covariates with a Cox model, the researchers still reported the log-rank result to compare the unadjusted survival curves.
在用 Cox 模型对协变量进行调整后,研究者仍报告对数秩检验结果,以比较未调整的生存曲线。

词源 Etymology

“log-rank”由 log(对数)与 rank(秩/排序)组成;该检验的思想与对事件发生时间的“秩次”及其在各时间点的期望差异比较有关。它也常被称为 MantelCox log-rank test,与 Mantel、Cox 等人在生存分析方法发展中的工作相关。

相关词 Related Words

文学与著作 Literary Works

  • Applied Survival Analysis: Regression Modeling of Time-to-Event Data(Hosmer, Lemeshow, May)
  • Survival Analysis: Techniques for Censored and Truncated Data(Klein & Moeschberger)
  • The Statistical Analysis of Failure Time Data(Kalbfleisch & Prentice)
  • Survival and Event History Analysis: A Process Point of View(Blossfeld, Rohwer 等)
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