Table 3.

Mean values of variables considered for diagnostic accuracy in the aHF and non-aHF populations

	Acute heart failure (n = 25)	Non-cardiac dyspnea (n = 67)	p
Positive chest X-ray (%)	40	22	0.07
Dilated left atrium (%)	96	33	0.001
Bilateral IS and/or effusion (%)	80	30	0.001
EF ≤ 40 (%)	48	5	0.0001
IVC dilated and not collapsing (%)	65	0	0.0001
BNP	1115 ± 883	169.69 ± 264.4	0.0001
E wave velocity (cm/sec)	99.2	66.9	0.0001
E/A	2.27	0.8	0.0001