Fig. 1

a–c Graft survival in Italy. Kaplan-Meier estimates of graft survival of all the transplants performed in the period 2006–2013, excluding re-transplants, combined transplants, and transplants with more than one risk factor (according to risk assessment protocols adopted in Italy since the year 2006). The log-rank test is used to test the null hypothesis. Latest update of graft follow-up: year 2016