Fig. 3From: Comparison of statistical models for estimating intervention effects based on time-to-recurrent-event in stepped wedge cluster randomized trial using open cohort designVisualization of the event generation models. White cells correspond to the control condition and grey cells to the intervention condition. Cross marks indicate when a subject enters the trial, filled black circles indicate relapse, and filled white circles indicate censoring. a Example of the Poisson process and the Mixed-Poisson process: all three time-to-events occur at the time of trial entry. b Example of the Weibull model: the first time-to-event occurs at the time of trial entry, and the second and subsequent time-to-events occur at the time of the previous eventBack to article page