Elevated Risk of Split‐Liver grafts in adult liver Transplantation: Statistical Artifact or Nature of the Beast?
Kazunari Sasaki, Daniel J. Firl, John C. McVey, Jesse D. Schold, Giuseppe Iuppa, Teresa Diago Uso, Masato Fujiki, Federico N. Aucejo, Cristiano Quintini, Bijan Eghetsad, Charles M. Miller, Koji Hashimoto – 7 January 2019 – A recent study using US national registry data reported, using Cox proportional hazards (PH) models, that split‐liver transplantation (SLT) has improved over time and is no more hazardous than whole‐liver transplantation (WLT). However, the study methods violated the PH assumption, which is the fundamental assumption of Cox modeling.