IGF1R and necrotizing enterocolitis: In the study group of children born prematurely, the 79GG genotype was present almost 2 times more often in children with ELGA (P = 0.029), and its presence was further associated with a 2-fold higher risk of NEC (P = 0.039) The presence of the IGF1R 3174AA genotype was associated at the level of statistical trend with DWMI (OR = 1.9; P = 182; allele frequencies differed at P = 0.054).