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arXiv 2202.00775stat.ME
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时间-事件数据半参数比例风险子模型的潜在类分析

Latent Class Analysis with Semi-parametric Proportional Hazards Submodel for Time-to-event Data

Teng Fei, John Hanfelt, Limin Peng

摘要:

潜在类别分析(LCA)是一个有用的工具,调查异质性的疾病人群的时间事件数据。本文提出了一种基于非参数极大似然估计(NPMLE)的协变量效应和累积风险函数的估计方法。我们通过广泛的模拟研究评估所提出的方法,并证明改进的预测性能超过标准Cox回归模型。我们进一步说明了所提出的方法的实际效用,通过应用到轻度认知障碍(MCI)队列数据集。

英文摘要:

Latent class analysis (LCA) is a useful tool to investigate the heterogeneity of a disease population with time-to-event data. We propose a new method based on non-parametric maximum likelihood estimator (NPMLE), which facilitates theoretically validated inference procedure for covariate effects and cumulative hazard functions. We assess the proposed method via extensive simulation studies and demonstrate improved predictive performance over standard Cox regression model. We further illustrate the practical utility of the proposed method through an application to a mild cognitive impairment (MCI) cohort dataset.

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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