Fig. 1: Flow diagram for the study.
From: Managing established bronchopulmonary dysplasia without using routine blood gas measurements

Five hundred and fifty-nine patients were admitted to the BPD NICU between 2015 and 2020 at ≥36 weeks PMA. Of those, 74 met exclusion criteria, leaving 485 that met inclusion criteria. There were 303 patients who never had a blood gas performed after admission to the BPD ICU.