TABLE 1.

Indications for RBC Transfusions During the 14-Day Study Period

Hematocrit, %*	Clinical Conditions and Circumstances
<40	Ventilation with ≥40% oxygen, sepsis, or necrotizing enterocolitis
<35	Ventilation with <40% oxygen or NCPAP or hood treatment with ≥40% supplemental oxygen
<30	Receiving NCPAP or hood oxygen supplementation of >25% but <40% or receiving 100% oxygen via nasal cannula at a flow rate of ≥0.25 L/min
<30	Major surgical procedures while not receiving respiratory support (with or without supplemental oxygen)

^*If not previously ordered because of clinical indications, hematocrit measurements were performed on Monday, Wednesday, and Friday. To warrant administration of a RBC transfusion, 2 hematocrit determinations performed within 24 hours of one another below the hematocrit levels indicated were required. NCPAP indicates nasal continuous positive airway pressure.