Table 2.

Variance in oxygen-exposure protocols in rodent models of bronchopulmonary dysplasia (LPS lipopolysaccharide, P postnatal day)

Oxygen level (%)	Oxygen duration	Protocol notes	Reference
40	P1-P7	Recovery in 21% O2 P7-P21	Wang et al. 2014
50/10	P1-P14	Oscillation; recovery in 21% O2 P14-P21	M. Chang et al. 2013
60	P1-P14		Ahlfeld et al. 2013; Belcastro et al. 2015; Masood et al. 2014
70	P3-P13		Bachiller et al. 2013
75	P1-P7		Harijith et al. 2013
75	P1-P14		Monz et al. 2013
75	P1-P14	Prenatal hypoxia (10% O2)	Gortner et al. 2013
75	P2-P17		Popova et al. 2014
75	P3-P27		Anyanwu et al. 2014
80	P6-P8		Weichelt et al. 2013
80	P1-P7	Prenatal LPS, recovery in 21% O2 P7-P14	Lee et al. 2014
80	P1-P15		Dayanim et al. 2014
80	P1-P7	Recovery in 21% O2 P8-P21	Pham et al. 2014
80	P1-P28	Recovery in 21% O2 P28-P56	Tibboel et al. 2015
85	P1-P7		James et al. 2013; Koskinen et al. 2014; Witsch et al. 2014a, 2014b
85	P2-P9		Park et al. 2013
85	P1-P10		Madurga et al. 2014
85	P1-P14		Ahlfeld et al. 2013; Britt et al. 2013; James et al. 2013; Raffay et al. 2013
85	P4-P14		Alphonse et al. 2014
85	P2-P8	Recovery in 21% O2 P8-P16	Park et al. 2013
85	P1-P14	Recovery in 21% O2 P14-P28	James et al. 2013; Raffay et al. 2013; Rieger-Fackeldey et al. 2014
85/gradient	P1-P28	85% O2 P1-P14, followed by gradient from 85% O2 to 21% O2 between P14 and P28	Rieger-Fackeldey et al. 2014
90	P3-P10	Recovery in 21% O2 P10-P14	Ramachandran et al. 2015
90	P1-P14		Ahn et al. 2015
90	P2-P15		Hummler et al. 2013
90	P1-P14	Recovery in 21% O2 P14-P15	Alapati et al. 2014
90	P1-P15		Sutsko et al. 2013
90	P2-P15	Recovery in 21% O2 P15-P28	Miranda et al. 2013
90	P1-P15	Recovery in 21% O2 P15-P29	Sutsko et al. 2013
95	P1-P7	Initiated pre-natally	Richter et al. 2014
90/60	P1-P21	90% O2 P1-P14, 60% O2 P14-P21	Y.S. Chang et al. 2013
95	P4-P14		Alphonse et al. 2014
95	P1-P14		Alphonse et al. 2014; McKenna et al. 2014; Vadivel et al. 2014
95	P1-P6	Recovery in 21% O2 P6-P21	Sakurai et al. 2013
95	P1-P7	Recovery in 21% O2 P7-P56	Ahlfeld et al. 2015
100	P1-P3.5		Kawamura et al. 2013
100	P1-P7		Sureshbabu et al. 2015
100	P1-P7	With LPS application	Syed and Bhandari 2013
100	P1-P10		Bhattacharya et al. 2014; Martin et al. 2014; Wagenaar et al. 2013a, 2013b
100	P1-P4	Recovery in 21% O2 P4-P56	Buczynski et al. 2013