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stat.ME2016
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…
stat.ME2016
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…