2 citations · 3 across the 3 of their papers we have counts for
3 papers · 1 filter
Surrogacy Validation for Time-to-Event Outcomes with Illness-Death Frailty Models
Emily K. Roberts, Michael R. Elliott, Jeremy M. G. Taylor
A common practice in clinical trials is to evaluate a treatment effect on an intermediate endpoint when the true outcome of interest would be difficult or costly to measure. We con…
Incorporating baseline covariates to validate surrogate endpoints with a constant biomarker under control arm
Emily Roberts, Michael Elliott, Jeremy M. G. Taylor
A surrogate endpoint S in a clinical trial is an outcome that may be measured earlier or more easily than the true outcome of interest T. In this work, we extend causal inference a…
A Bayesian Mixture Model for Changepoint Estimation Using Ordinal Predictors
Emily Roberts, Lili Zhao
In regression models, predictor variables with inherent ordering, such as tumor staging ranging and ECOG performance status, are commonly seen in medical settings. Statistically, i…