Our investigation did not confirm any significant prevalence for NEC development in other studied genotypes/alleles such as END-1 5665G>T; Il-1β 3953C>T, Il-6 −174G>C and −596G>A, TNF-α −308G>A; and Il-1RNVNTR 86 bp. This evidence concerns the gene IL1B and necrotizing enterocolitis.