When the analysis is being limited to (all) NEC patients, 11 patients with complicated NEC versus 11 patients with uncomplicated NEC showed statistically significant different I-FABP levels, whether measured in plasma (103 [10–3,748] ng/mL versus 4.1 [0.54–70] ng/mL; p = 0.019) or urine (517 [3.3–23,337] ng/mL versus 35 [3.2–232] ng/mL; p = 0.042) at 8–16 h after onset of disease (Fig. 4, A and B). The gene discussed is FABP2; the disease is necrotizing enterocolitis.