Fig. 2.

Influence of the era on graft survival (p = 0.097; Kaplan–Meier analysis, log-rank test) (era 1 = 01.01.1987–31.12.1994, era 2 = 01.01.1995–31.12.2002, era 3 = 01.01.2003–31.12.2010). It is interesting to note that graft survival has improved continuously from era to era with a growing number of performed transplants without reaching statistical significance