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分类依据与纠错

AI 根据所提供的论文材料归类:摘要明确研究跨人群迁移下已治疗者平均处理效应的识别与估计。

反馈分类问题

Transporting summary measures of relative effects from randomised trials to the treated patient population: an application to breast cancer endocrine therapy

将随机试验的相对效应汇总量迁移至已治疗患者:乳腺癌内分泌治疗应用

正在核对关联版本…

代码、数据与补充材料

正在核对对应版本的资源…

关注这篇论文的作者
Bonnie E. Shook-Sa
Paul N. Zivich
Carolyn Taylor
David Dodwell
Jake Probert
Sarah C Darby
Paul McGale

将随机试验的相对效应汇总量迁移至已治疗患者:乳腺癌内分泌治疗应用

研究问题
试验人群与治疗目标人群不一致且个体试验数据不可得时,能否结合试验相对效应和常规诊疗资料识别已治疗者的绝对效应?
方法与思路
作者结合风险比或风险率比汇总量与已治疗患者代表性样本,在边际或条件可迁移性假设下识别 ATT,并构造代入估计量。
材料陈述的贡献
摘要称建立 ATT 的识别结果,讨论效应指标可折叠性与迁移的关系,并通过模拟和乳腺癌十五年死亡结局应用评估方法。
阅读关注点
应核对两种可迁移性假设的具体内容、风险率比到绝对效应的转换、随访处理,以及汇总效应估计误差如何进入推断。
阅读边界
这是 arXiv 预印本,不能据此认定已同行评审或期刊接收;识别依赖迁移假设,摘要未说明完整条件或应用效应数值。

原文摘要

Randomised trials often report relative treatment effects, such as risk ratios and hazard ratios, for trial populations. Clinical decision-making, however, often benefits from estimates of absolute treatment effects in the population eligible for treatment. Trial participants may not represent this target population well, and restrictions on access to individual participant trial data can further complicate absolute effect estimation. Routine care data are often representative of the target population but may be subject to uncontrolled confounding. We consider estimation of the average treatment effect on the treated (ATT), an absolute measure, by combining a representative sample of treated routine care patients with summary measures (i.e., estimated risk or hazard ratios) from either a randomised trial or a meta-analysis of trials. Under marginal or conditional transportability assumptions, the ATT is shown to be identifiable. The implications of collapsibility of the effect measure on transportability are discussed, and plug-in estimators of the ATT are presented. Simulation studies are used to assess finite sample performance of the estimators in a range of settings. The proposed methods are applied to estimate the ATT of endocrine therapy on 15-year breast cancer mortality using results from a meta-analysis of randomised trials and England's National Disease Registration Service.

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