Carboxyhemoglobin Formation in Preterm Infants Is Related to the Subsequent Development of Bronchopulmonary Dysplasia

Figure 1

The infants who developed moderate-to-severe bronchopulmonary dysplasia (BPD) required a higher fraction of inspiratory oxygen during the late postnatal period. The fraction of inspiratory oxygen was compared between the no-or-mild BPD group (open bars) and the moderate-to-severe BPD group (closed bars) on the postnatal days indicated. < 0.05 for the no-or-mild BPD group versus the moderate-to-severe BPD group on the postnatal days indicated.