A comparison analysis of the frequencies of the alleles and genotypes of thepolymorphisms in the TGFB1 gene depending on the disease responsible for theheart failure and subsequent cardiac allograft transplantation revealed thatpatients with DCM carried the GG genotype of rs1800469 more frequently thanpatients with IHD did (p = 0.03; OR = 2.68; 95% CI, 1.061–6.793)(Fig. 3). The gene discussed is TGFB1; the disease is myocardial ischemia.