Table 2.

A univariate analysis of risk factors for early significant (at least mild-moderate) TR.

Risk factor		No TR/mild TR (n)	At least mild-moderate TR (n)	P value
	Average pretransplant MPAP (mmHg)	34.0 ± 15.4 (n = 37*)	43.0 ± 10.8 (n = 24*)	0.009
Pre-transplant hemodynamic parameters	Average pre-transplant PVR (Wood units)	2.9 ± 2.2 (n = 37*)	4.1 ± 2.3 (n = 23*)	0.066
	Average pre-transplant right atrial pressure (mmHg)	10.5 ± 6.3 (n = 31*)	13.2 ± 6.1 (n = 18*)	0.141
Surgical technique employed	Biatrial %	10.2% (n = 6/59*)	8.8% (n = 3/34*)	0.833

TR: tricuspid regurgitation; MPAP: mean pulmonary arterial pressure; PVR: pulmonary vascular resistance.

*Relatively small numbers of patients due to missing early postoperative data, particularly for patients transplanted in foreign countries.