Skip to main content
. Author manuscript; available in PMC: 2018 Mar 22.
Published in final edited form as: Clin Perinatol. 2015 Sep 26;42(4):839–855. doi: 10.1016/j.clp.2015.08.010

Figure 2.

Figure 2

The incidence of PH according to the degree of BPD severity. Incidence of PH among preterm infants from three studies, Seoul,15 Alabama,16 and Colorado/Indiana.17 The percentage of patients listed on the Y-axis represents the proportion of patients in each study in whom BPD status was ascertained. Please see text for inclusion criteria of each of the studies. BPD severity was based on NIH criteria.38 Physiologic assessment of oxygenation to determine BPD status94 was applied in the Alabama and CU/IU cohorts. The Seoul cohort did not include preterm infants without BPD. Numbers above the bars indicate the percentage of patients with PH.