Figure.

Cord blood PIGF and G-CSF levels in 87 extremely preterm infants, compared according to BPD and PH status. Infants with BPD-PH disease at 36 weeks corrected age (N = 21) had significantly lower levels as compared with all infants without BPD or PH (N = 66). Levels in infants with BPD-PH were also lower when compared with the subgroups of infants with BPD only but no PH (n = 26), and infants without BPD or PH (n = 40). Median biomarker levels compared using Wilcoxon rank-sum. *P < .01 and **P ≤ .001, versus BPD-PH.