Survival Analysis with Median Regression Models
基于中位数回归模型的生存分析AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要明确以条件中位数回归研究协变量与生存时间的关系,直接对应分位数方法。
基于中位数回归模型的生存分析AI 解读 ↓
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The median is a simple and meaningful measure for the center of a long-tailed survival distribution. To examine the covariate effects on survival, a natural alternative to the usual mean regression model is to regress the median of the failure time variable or a transformation thereof on the covariates. In this article we propose semiparametric procedures to make inferences for such median regression models with possibly censored observations. Our proposals can be implemented efficiently using a simulated annealing algorithm. Numerical studies are conducted to show the advantage of the new procedures over some recently developed methods for the accelerated failure time model, a special type of mean regression models in the survival analysis. The proposals discussed in the article are illustrated with a lung cancer data set.