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Full-Text Articles in Physical Sciences and Mathematics
Causal Inference In Observational Studies With Clustered Data, Meng Wu
Causal Inference In Observational Studies With Clustered Data, Meng Wu
Legacy Theses & Dissertations (2009 - 2024)
In this thesis, we study causal inference in observational studies with clustered data.
Estimating Survival Distributions, Important Covariates And Time-Varying Associations, Yan Wu
Estimating Survival Distributions, Important Covariates And Time-Varying Associations, Yan Wu
Legacy Theses & Dissertations (2009 - 2024)
There are three papers each on a different topic in this thesis. The first paper proposes a new objective methodology to estimate any subject specific survival distribution with potential time-varying effect by adjusting approximated polynomial censored survival function with estimated censoring distribution under three different assumptions: uniform censoring, independent censoring and non-informative censoring. The coefficients of the polynomial censored survival function and underlying censoring probability are estimated at each event or censoring time point across the study time frame, which naturally accommodates potential non-proportional hazards along with time-varying effect. An extensive simulation study indicates that the proposed methods usually perform …