https://scholars.lib.ntu.edu.tw/handle/123456789/112722
Title: | NONPARAMETRIC ESTIMATION OF A RECURRENT SURVIVAL FUNCTION | Authors: | Wang, Mei-Cheng Chang, Shu-Hui |
Keywords: | correlated survival data;frailty;Kaplan-Meier estimate;longitudinal designs;recurrent event | Issue Date: | 1999 | Journal Volume: | v.94 | Journal Issue: | n.445 | Start page/Pages: | 146-153 | Source: | JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION | Abstract: | Recurrent event data are frequently encountered in studies with longitudinal designs. Let the recurrence rime be the time between two successive recurrent events. Recurrence times can be treated as a type of correlated survival data in statistical analysis. In general, because of the ordinal nature of recurrence times, statistical methods that are appropriate for standard correlated survival data in marginal models may not be applicable to recurrence time data. Specifically, for estimating the marginal survival function. the Kaplan-Meier estimator derived from the pooled recurrence times serves as a consistent estimator for standard correlated survival data but not for recurrence time data. In this article we consider the problem of how to estimate the marginal survival function in nonparametric models. A class of nonparametric estimators is introduced. The appropriateness of the estimators is confirmed by statistical theory and simulations. Simulation and analysis from schizophrenia data are presented to illustrate: the estimators' performance. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/84386 |
Appears in Collections: | 流行病學與預防醫學研究所 |
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