Joint Latent Class Trees: A Tree-Based Approach to Modeling Time-to-event and Longitudinal Data
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Publication:127862
DOI10.48550/ARXIV.1812.01774arXiv1812.01774MaRDI QIDQ127862
Author name not available (Why is that?)
Publication date: 5 December 2018
Abstract: In this paper, we propose a semiparametric, tree based joint latent class modeling approach (JLCT) to model the joint behavior of longitudinal and time-to-event data. Existing joint latent class modeling approaches are parametric and can suffer from high computational cost. The most common parametric approach, the joint latent class model (JLCM), further restricts analysis to using time-invariant covariates in modeling survival risks and latent class memberships. Instead, the proposed JLCT is fast to fit, and can use time-varying covariates in all of its modeling components. We demonstrate the prognostic value of using time-varying covariates, and therefore the advantage of JLCT over JLCM on simulated data. We further apply JLCT to the PAQUID data set and confirm its superior prediction performance and orders-of-magnitude speedup over JLCM.
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