However, CRP (AUC = 0.564) had a low diagnostic value for NEC, while IL-24 (AUC = 0.781), C–X–C motif chemokine 1 (CXCL1, (AUC = 0.774)), TSLP (AUC = 0.751) and IL-8 (AUC = 0.744) had good diagnostic values for NEC. The gene discussed is CXCL1; the disease is necrotizing enterocolitis.