17 citations · 24 across the 10 of their papers we have counts for
3 papers · 1 filter
Discovering Effect Modification in an Observational Study of Surgical Mortality at Hospitals with Superior Nursing
Kwonsang Lee, Dylan S. Small, Jesse Y. Hsu +2
There is effect modification if the magnitude or stability of a treatment effect varies systematically with the level of an observed covariate. A larger or more stable treatment ef…
Using an Instrumental Variable to Test for Unmeasured Confounding
Zijian Guo, Jing Cheng, Scott A. Lorch +1
An important concern in an observational study is whether or not there is unmeasured confounding, i.e., unmeasured ways in which the treatment and control groups differ before trea…
Mediation Analysis for Count and Zero-Inflated Count Data without Sequential Ignorability and Its Application in Dental Studies
Zijian Guo, Dylan S. Small, Stuart A. Gansky +1
Mediation analysis seeks to understand the mechanism by which a treatment affects an outcome. Count or zero-inflated count outcome are common in many studies in which mediation ana…