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    • University of Missouri-Columbia
    • Graduate School - MU Theses and Dissertations (MU)
    • Theses and Dissertations (MU)
    • Dissertations (MU)
    • 2006 Dissertations (MU)
    • 2006 MU dissertations - Freely available online
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    Nonparametric and semiparametric methods for interval-censored failure time data

    Zhu, Chao, 1979-
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    [PDF] research.pdf (1.593Mb)
    Date
    2006
    Format
    Thesis
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    Abstract
    Interval-censored failure time data commonly arise in follow-up studies such as clinical trials and epidemiology studies. By interval-censored data, we mean that the failure time of interest is not completely observed. Instead, we only know that it belongs to a certain interval. For the analysis of interval-censored data, what interests researcher most include comparisons of survival functions for different treatment groups and regression analysis. In this dissertation, we consider these research questions on two types of interval-censored data by using nonparametric and semi-parametric approaches. Three new procedures, which include a goodness-of-fit test for the proportional odds mode with interval-censored data, a nonparametric test for comparing two survival functions with interval-censored data in the presence of unequal censoring, and a semi-parametric regression model for two-sample current status data, are established. Also, their performance is evaluated by simulation studies, which suggest that all approaches work well for practical situations. In addition, we apply new approaches to two real data sets arising from AIDS and tumorgenicity studies.
    URI
    https://doi.org/10.32469/10355/4415
    https://hdl.handle.net/10355/4415
    Degree
    Ph. D.
    Thesis Department
    Statistics (MU)
    Rights
    OpenAccess.
    Collections
    • 2006 MU dissertations - Freely available online
    • Statistics electronic theses and dissertations (MU)

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