HLA-A and Schnyder corneal dystrophy: Two to six HLA-A,B,DR mismatches, when compared to 0-1 MM, conferred a significant risk for death-censored graft survival only in transplants from 18–59-year old SCD in 18–49-year-old recipients (84.3 vs. 90.2%, HR 1.58; 95% CI 1.17–2.13; p = 0.003) (Figure 4).