Table 1.

Lung injury score parameter.

Parameter	Score
	0	1	2
A: neutrophils in the alveolar space	0	1–5	>5
B: neutrophils in the interstitial space	0	1–5	>5
C: hyaline membranes	0	1	>1
D: proteinaceous debris filling the airspaces	0	1	>1
E: alveolar septal thickening	<2x	2x–4x	>4x