(b) Total protein levels after in hypoxic or hyperoxic conditions in lung lavage (mg/ml).

Time	Hypoxia group (total protein, mg/ml)	Hyperoxia group (total protein, mg/ml)
15 min	2.3 ± 0.9*	3.1 ± 1.1*

There was no difference in protein content between hypoxia and hyperoxia group. However, these levels were significantly lower than in the meconium group (P < .05) (see above in Table 2(a)) and higher than the saline group.