Censored quantile regression with partially functional effects
具有部分分位数变动效应的删失分位数回归AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要明确研究删失分位数回归及随分位数变化的协变量效应,对应分位数与分布分析。
具有部分分位数变动效应的删失分位数回归AI 解读 ↓
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Quantile regression offers a flexible approach to analyzing survival data, allowing each covariate effect to vary with quantiles. In practice, constancy is often found to be adequate for some covariates. In this paper, we study censored quantile regression tailored to the partially functional effect setting with a mixture of varying and constant effects. Such a model can offer a simpler view regarding covariate-survival association and, moreover, can enable improvement in estimation efficiency. We propose profile estimating equations and present an iterative algorithm that can be readily and stably implemented. Asymptotic properties of the resultant estimators are established. A simple resampling-based inference procedure is developed and justified. Extensive simulation studies demonstrate efficiency gains of the proposed method over a naive two-stage procedure. The proposed method is illustrated via an application to a recent renal dialysis study.