A class of semiparametric cure models with current status data.
A class of semiparametric cure models with current status data.
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DOI:
10.1007/s10985-018-9420-0
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发表时间:
2019-01
影响因子:
1.3
通讯作者:
Yuan A
中科院分区:
文献类型:
--
作者:
Diao G;Yuan A
Current status data occur in many biomedical studies where we only know whether the event of interest occurs before or after a particular time point. In practice, some subjects may never experience the event of interest, i.e., a certain fraction of the population is cured or is not susceptible to the event of interest. We consider a class of semiparametric transformation cure models for current status data with a survival fraction. This class includes both the proportional hazards and the proportional odds cure models as two special cases. We develop efficient likelihood-based estimation and inference procedures. We show that the maximum likelihood estimators for the regression coefficients are consistent, asymptotically normal, and asymptotically efficient. Simulation studies demonstrate that the proposed methods perform well in finite samples. For illustration, we provide an application of the models to a study on the calcification of the hydrogel intraocular lenses.
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