Finite sample performance of optimal treatment rule estimators with right-censored outcomes
右删失结局下最优治疗规则估计量的有限样本表现AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要围绕观察性数据中的治疗效应异质性、最优治疗决策及规则实施后的结局评估展开,最直接对应因果推断方向。
右删失结局下最优治疗规则估计量的有限样本表现AI 解读 ↓
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Patient care may be improved by recommending treatments based on patient characteristics when there is treatment effect heterogeneity. Recently, there has been a great deal of attention focused on the estimation of optimal treatment rules that maximize expected outcomes. However, there has been comparatively less attention given to settings where the outcome is right-censored, especially with regard to the practical use of estimators. In this study, simulations were undertaken to assess the finite-sample performance of estimators for optimal treatment rules and estimators for the expected outcome under treatment rules. The simulations were motivated by the common setting in biomedical and public health research where the data is observational, survival times may be right-censored, and there is interest in estimating baseline treatment decisions to maximize survival probability. A variety of outcome regression and direct search estimation methods were compared for optimal treatment rule estimation across a range of simulation scenarios. Methods that flexibly model the outcome performed comparatively well, including in settings where the treatment rule was non-linear. R code to reproduce this study's results are available on Github.