Time-to-Event Analysis with Unknown Time Origins via Longitudinal Biomarker Registration.
Time-to-Event Analysis with Unknown Time Origins via Longitudinal Biomarker Registration.
复制标题
通过纵向生物标记注册进行未知时间起源的事件时间分析。
DOI:
10.1080/01621459.2021.2023552
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发表时间:
2023
影响因子:
3.7
通讯作者:
Guo,Wensheng
中科院分区:
文献类型:
--
作者:
Wang,Tianhao;Ratcliffe,SarahJ;Guo,Wensheng
In observational studies, the time origin of interest for time-to-event analysis is often unknown, such as the time of disease onset. Existing approaches to estimating the time origins are commonly built on extrapolating a parametric longitudinal model, which rely on rigid assumptions that can lead to biased inferences. In this paper, we introduce a flexible semiparametric curve registration model. It assumes the longitudinal trajectories follow a flexible common shape function with person-specific disease progression pattern characterized by a random curve registration function, which is further used to model the unknown time origin as a random start time. This random time is used as a link to jointly model the longitudinal and survival data where the unknown time origins are integrated out in the joint likelihood function, which facilitates unbiased and consistent estimation. Since the disease progression pattern naturally predicts time-to-event, we further propose a new functional survival model using the registration function as a predictor of the time-to-event. The asymptotic consistency and semiparametric efficiency of the proposed models are proved. Simulation studies and two real data applications demonstrate the effectiveness of this new approach. Supplementary materials for this article are available online.
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影响因子:
1.5
作者:
C. Julian
通讯作者:
C. Julian
DOI:
--
发表时间:
1982
期刊:
Cancer treatment reports
影响因子:
--
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通讯作者:
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影响因子:
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通讯作者:
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影响因子:
6.4
作者:
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