Packed red blood cell transfusions as a risk factor for parenteral nutrition associated liver disease in premature infants

Figure 1 The number of patients that reached peak direct bilirubin ≥ 2. 0 (black bar) or direct bilirubin < 2.0 (grey bar). They are shown for both the low transfusion (total PRBC volume < 75 mL) and the high transfusion (total blood volume ≥ 75 mL) groups (high transfusion vs low transfusion P < 0.01). db: Direct bilirubin.