Table 1.

Shear stiffness for normal and injured lungs as a function of transpulmonary pressure

	Lung Group
	Injured		Normal
Ptp, cm H2O	Mean	SE	Mean	SE	Unadjusted P Value
3	1.003	0.125	1.312	0.125	0.099
6	1.066	0.125	1.890	0.125	0.0003
9	1.162	0.125	2.413	0.125	<0.0001
12	1.261	0.125	2.933	0.125	<0.0001

P_tp, transpulmonary pressure.