Fractional exhaled nitric oxide in idiopathic pulmonary arterial hypertension and mixed connective tissue disease complicating pulmonary hypertension

Table 3 Relationship between FeNO levels and clinical parameters in patients with MCTD-PH

Factors	MCTD-PH: all (78)		MCTD-PH: mild (33)		MCTD-PH: severe (38)
	R	P	R	P	R	P
PFT
FVC, L	0.081	0.484	0.086	0.636	-0.024	0.886
FEV1, L	0.042	0.717	0.000	1.000	-0.045	0.789
FEV1/FVC	-0.166	0.147	-0.059	0.746	-0.224	0.176
MEF50%	-0.133	0.245	-0.045	0.804	-0.227	0.170
MEF25%	-0.109	0.343	-0.068	0.705	-0.146	0.383
MMEF75/25%	-0.103	0.369	-0.017	0.924	-0.243	0.142
IOS
R5, cmH2O/(L/s)	-0.033	0.208	0.060	0.741	-0.012	0.946
R5%	-0.056	0.773	0.042	0.817	-0.015	0.932
R20, cmH2O/(L/s)	-0.215	0.060	-0.007	0.969	-0.292	0.080
R20%	-0.240	0.036	0.020	0.910	-0.333	0.044
CPET
restHR	-0.318	0.005	-0.219	0.222	-0.390	0.016
restO2/HR	0.279	0.014	-0.015	0.935	0.527	0.001
restRER	-0.215	0.058	-0.118	0.513	-0.416	0.009
warmHR	-0.383	0.001	-0.234	0.190	-0.465	0.003
warmO2/HR	0.380	0.001	-0.030	0.866	0.567	0.000
warmRER	-0.165	0.149	-0.008	0.965	-0.459	0.004
ATHR	-0.416	0.000	-0.269	0.137	-0.516	0.001
ATO2/HR	0.339	0.003	0.038	0.837	0.477	0.003
ATRER	-0.252	0.030	-0.070	0.705	-0.467	0.004
PeakHR	-0.290	0.010	-0.167	0.354	-0.485	0.002
PeakO2/HR	0.355	0.001	0.079	0.661	0.456	0.004
PeakRER	-0.120	0.295	-0.009	0.959	-0.361	0.026
PeakPETO2, mmHg	-0.133	0.245	-0.028	0.878	-0.114	0.497
PeakPETCO2, mmHg	0.150	0.191	0.176	0.326	-0.076	0.649

Correlation coefficients were expressed as Spearman correlation coefficients. See Tables 1 and 2 legend for expansion of abbreviations.

ISSN: 1471-2466