Fig. 5. Bradycardia and low oxygen saturations (apneas), and partial pressures of carbon dioxide.

a Bradycardia (HR <100 bpm) and low oxygen saturations (SpO₂). Cumulative times, i.e., percentage of time (mean +/− SEM) during the first 3 days of life, when having at the same time heart rate (HR) below 100 bpm and SpO₂ < 85% or SpO₂ < 90% in ELGANs with normal (n = 43) or abnormal (n = 26) white matter (WM) in MRI at TEA. b Partial pressures of carbon dioxide (pCO₂, arterial samples). Arterial pCO₂ (averages and percentage of total measurements in subgroups; mean +/− SEM, *p < 0.05) obtained during the first 3 days of life in ELGANs with normal (n = 43) or abnormal (n = 26) white matter (WM) in MRI at TEA.