Vascular pedicle width in acute lung injury: correlation with intravascular pressures and ability to discriminate fluid status

Table 1 Multivariate regression of VPW, net fluid balance, PEEP, and albumin with PAOP

	Unstandardized coefficients		95% CI for B		Standardized coefficients	P-value
	B	Std. error	Lower bound	Upper bound
Constant	-3.34	4.05	-11.39	4.71		0.41
VPW	0.20	0.04	0.11	0.29	0.43	<0.001
Cumulative Net Fluid (L)	0.21	0.08	0.05	0.37	0.26	0.01
PEEP	0.26	0.14	-0.02	0.54	0.19	0.07
Albumin	1.05	0.90	-0.73	2.84	0.11	0.24

Standardized coefficients allow comparison of the covariate correlations to PAOP. For example, VPW correlates with PAOP about 2.5 times as well as PEEP (0.42 vs. 0.19). 95% CI, 95% confidence interval; VPW, vascular pedicle width; PEEP, positive end-expiratory pressure; PAOP, pulmonary artery occlusion pressure.

ISSN: 1364-8535