4 citations · 9 across the 4 of their papers we have counts for
4 papers
Leveraging External Controls in Clinical Trials: Estimands, Estimation, Assumptions
Bo Liu, Laine Thomas, Rury R. Holman +1
It is increasingly common to augment randomized controlled trial with external controls from observational data, to evaluate the treatment effect of an intervention. Traditional ap…
Sample size and power calculations for causal inference of observational studies
Bo Liu, Chengxin Yang, Fan Li
This paper investigates the theoretical foundation and develops analytical formulas for sample size and power calculations for causal inference with observational data. By analyzin…
Addressing selection bias in cluster randomized experiments via weighting
Georgia Papadogeorgou, Bo Liu, Fan Li
In cluster randomized experiments, individuals are often recruited after the cluster treatment assignment, and data are typically only available for the recruited sample. Post-rand…
Addressing Extreme Propensity Scores in Estimating Counterfactual Survival Functions via the Overlap Weights
Chao Cheng, Fan Li, Laine Thomas
The inverse probability weighting approach is popular for evaluating treatment effects in observational studies, but extreme propensity scores could bias the estimator and induce e…