3 papers
stat.ME2021
Clarifying Selection Bias in Cluster Randomized Trials: Estimands and Estimation
Fan Li, Zizhong Tian, Jennifer Bobb +1
In cluster randomized trials, patients are typically recruited after clusters are randomized, and the recruiters and patients may not be blinded to the assignment. This often leads…
stat.ME2021
Covariate adjustment in subgroup analyses of randomized clinical trials: A propensity score approach
Siyun Yang, Fan Li, Laine E. Thomas
Background: Subgroup analyses are frequently conducted in randomized clinical trials to assess evidence of heterogeneous treatment effect across patient subpopulations. Although ra…
stat.ME2020
Propensity Score Weighting for Covariate Adjustment in Randomized Clinical Trials
Shuxi Zeng, Fan Li, Rui Wang
Chance imbalance in baseline characteristics is common in randomized clinical trials. Regression adjustment such as the analysis of covariance (ANCOVA) is often used to account for…