Date of Award
Doctor of Philosophy
Dr. Joshua D. Naranjo
Dr. Magdalena Niewiadomska-Bugaj
Dr. Mathew Anthony C. Rosales
Survival analysis, stratified Logrank diagnostic, stratified Wilcoxon diagnostic, adjusting for covariates, adaptive test
Martinez and Naranjo (2010) proposed a pretest for choosing between Logrank or Wilcoxon test in a two - sample case. However, in the presence of covariates, comparing two populations without adjusting for covariates would yield misleading results. In this study, we propose several pretests that will help the analyst decide to use stratified Logrank or stratified Wilcoxon tests in comparing two survival curves after covariates have been taken into account. Power performance of each adaptive test was done through simulations under PH and non-PH cases.
Restricted to Campus until
Gatpatan, Jhoanne Marsh C., "Diagnostics for Choosing between Stratified Logrank and Stratified Wilcoxon" (2017). Dissertations. 3197.