A model using multivariate logistic regression including NKG2C genotype, HLA mismatch, donor and recipient CMV status, donor and recipient sex as well as age showed that HLA-E mismatch is an independent marker of CMV infection (p=0.014, OR=5.92, 95%CI 1.57 - 29.22). This evidence concerns the gene HLA-E and cytomegalovirus infection.