. Author manuscript; available in PMC: 2013 May 1.

Published in final edited form as: Am J Cardiol. 2012 Feb 15;109(9):1353–1357. doi: 10.1016/j.amjcard.2011.11.067

Table 2.

Echocardiographic values for the study population

Characteristic	N	Mean ± S.D.
Tricuspid regurgitation velocity (m/s)	104	2.5 ± 0.4
Estimated pulmonary arterialsystolic pressure (mmHg)	104	36 ± 9
Right ventricular outflow tract velocity-time integral (cm)	134	20.1 ± 3.7
Pulmonary vascular resistance index	103	1.2 ± 0.2
E/e′ ratio	95	8.0 ± 3.7
Tricuspid annulus s′ (cm/s)	92	15.0 ± 2.5
Tricuspid regurgitation jet area (cm²)	126	4.9 ± 3.1
Right ventricular area (cm²)	130	23.4 ± 4.5
Right atrial area (cm²)	133	17.1 ± 3.9
Left ventricular area (cm²)	131	42.7 ± 6.4