Table 2.

Median Values for Respiratory Variables on Day of Birth, Postnatal Days One to Three, and Four to Seven by Hospital and Presence or Absence of CLD, as Determined by Oxygen Requirement at 36 Weeks' PMA

CLD →Day of BirthDays 1–3Days 4–7
BostonBabies'BostonBabies'BostonBabies'
YesNoYesNoYesNoYesNoYesNoYesNo
Fio2
 Highest10040100507228502462213021
 Mode362140213421332129212321
 Lowest252130212121212121212121
Pao2
 Highest123106123118988910693828685102
 Mode667464716666656363636462
 Lowest496249674755454848564754
Paco2
 Highest484658545744735453466954
 Mode383951454442545045436048
 Lowest293239443134393935374841
PIP
 Highest252521212220232120202020
 Mode222022202019212019192019
 Lowest191920201818181818181918
MAwP
 Highest9.68.511.08.48.57.511.512.07.47.07.16.8
 Mode7.56.99.38.46.96.610.39.06.36.16.45.9
 Lowest6.55.88.08.05.65.55.96.05.35.95.95.8