Table 5. Correlation analysis of hemodynamic and clinical variables in non-elderly patients.

		NYHA FC	6MWD	BNP
sPAPRHC	r	0.139	−0.119	0.196
	P	0.239	0.348	0.103
PVR	r	0.378	−0.259	0.365
	P	0.002	0.05	0.003
CI	r	0.010	0.214	−0.248
	P	0.937	0.111	0.048
RAP	r	0.397	−0.444	0.206
	P	0.001	0.001	0.109

BNP: brain natriuretic peptide; CI: cardiac index; NYHA FC: New York Heart Association functional class; PVR: pulmonary vascular resistance; RAP: right atrial pressure; 6MWD: 6-min walking distance; sPAP_RHC: systolic pulmonary artery pressure measured on right-heart catheterization.