A reliable assessment of COVID-19 vaccine protection duration
Researchers from the University of North Carolina, University of Washington, and the US Food and Drug Administration propose fitting a Cox model with two time indexes, the event times measured from the start of the study in calendar time and the log hazard for the vaccine effect.
United States North Carolina University Of North Carolina Aimee Molineux Sam Hancockdec Lookerstudio Shutterstock
Source: news-medical.net