Initial analyses in the total cohort of patients showed some evidence of a relationship between the following outcomes and SNPs: IL-6 (rs1800795) with NEC and severity of disease, TGFβ-1 (rs2241712) with overall mortality and NEC perforation, and TRIM21 (rs660) with NEC perforation (Table 5). Here, TGFB1 is linked to necrotizing enterocolitis.