3 papers
stat.ME2026
A Likelihood Ratio Testing Approach for Interval-Censored Data
Yuan Wu, Susan Halabi
Interval-censored data frequently arise in clinical research where event times are only known to fall within specific assessment windows. Although the Cox proportional hazards mode…
stat.ME2026
Group Sequential Sample Size for Comparing Two Survival Probabilities at a Specific Time Point
Susan Halabi, Lu Liu, Chenxi Yu +1
We propose a novel method that simultaneously determines the sample size for testing two survival probabilities at a pre-specified ltime while guaranteeing type I error control in…
stat.ME2025
Improving Variance and Confidence Interval Estimation in Small-Sample Propensity Score Analyses: Bootstrap vs. Asymptotic Methods
Baoshan Zhang, Sean M. O'Brien, Yuan Wu +1
Propensity score (PS) methods are widely used to estimate treatment effects in non-randomized studies. Variance is typically estimated using sandwich or bootstrap methods, which ca…