Table 2. Correlation between serum 25(OH)D levels and hemodynamic parameters in PH patients.

	All patients (n = 41)		PAH (n = 12)		CTEPH (n = 29)
Variables	Correlation coefficient (ρ)	P-value	Correlation coefficient (ρ)	P-value	Correlation coefficient (ρ)	P-value
Mean PAP	-0.421	0.006†	-0.055	0.866	-0.292	0.124
Mean RAP	0.044	0.784	0.067	0.836	0.124	0.521
PCWP	-0.073	0.649	-0.411	0.184	0.047	0.807
PVR	-0.382	0.014*	-0.493	0.103	-0.250	0.190
Cardiac output	0.317	0.043*	0.609	0.035*	0.171	0.374
Cardiac index	0.213	0.207	0.405	0.192	0.041	0.847
BNP	-0.155	0.334	-0.338	0.283	-0.236	0.219
6MWD	0.230	0.165	0.306	0.359	0.298	0.131

Abbreviations are defined in Table 1.

*P < 0.05 in correlation analysis with serum 25(OH)D levels.

^†P < 0.01 in correlation analysis with serum 25(OH)D levels.