Empirical use of causal inference methods to evaluate survival differences in a real‐world registry vs those found in randomized clinical trials
With heighted interest in causal inference based on real‐world evidence, this empirical study sought to understand differences between the results of observational analyses and long‐term randomized clinical trials. We hypothesized that patients deemed “eligible” for clinical trials would follow a different survival trajectory from those deemed “ineligible” and that this factor could partially expl
