CRP and necrotizing enterocolitis: On the other hand, weight gain (HR = 0.99, 95%CI: 0.98–1.00), blood transfusion before onset (HR = 0.85, 95% CI: 0.29–2.45), and increased CRP before onset (HR = 1.01, 95%CI: 1.00–1.02) were protective factors for NEC outcomes.