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arXiv 2203.02771stat.MEstat.APstat.CO
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方法:基于参考的纵向二值和有序结果的控制多重插补

Remiod: Reference-based Controlled Multiple Imputation of Longitudinal Binary and Ordinal Outcomes with non-ignorable missingness

Tony Wang, Ying Liu

摘要:

在临床研究中,反应变量的缺失数据很常见。与缺失机制的不确定性相对应,控制性插补的理论框架已经形成。在实践中,建议在主要假设下对缺失数据进行统计学有效性分析,然后在替代假设下进行敏感性分析,以评估结果的稳健性。由于软件的可用性,受控多重插补(MI)程序,包括基于增量和基于参考的方法,已成为流行的分析连续变量下的缺失非随机假设。然而,类似的工具仍然限制了这些方法对分类数据的应用。在本文中,我们介绍了R包\textbf{remiod},它利用贝叶斯框架进行插补的回归模型的二进制和有序的结果。在概述理论背景之后,描述了\textbf{remiod}的用法和特征,并使用示例进行了说明。

英文摘要:

Missing data on response variables are common in clinical studies. Corresponding to the uncertainty of missing mechanism, theoretical frameworks on controlled imputation have been developed. In practice, it is recommended to conduct a statistically valid analysis under the primary assumptions on missing data, followed by sensitivity analysis under alternative assumptions to assess the robustness of results. Due to the availability of software, controlled multiple imputation (MI) procedures, including delta-based and reference-based approaches, have become popular for analyzing continuous variables under missing-not-at-random assumptions. Similar tools, however, still limit application of these methods to categorical data. In this paper, we introduce the R package \textbf{remiod}, which utilizes the Bayesian framework to perform imputation in regression models on binary and ordinal outcomes. Following outlining theoretical backgrounds, usage and features of \textbf{remiod} are described and illustrated using examples.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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