Table 5

Receiver operating characteristic curve analyses predicting the presence of mPAP >35mm Hg

						Positive predictive value		Negative predictive value
Paw scores	AUC	AUC's SE	p Value	Sensitivity	Specificity	5% prev	13% prev	5% prev	13% prev
40 patients
%CSA_<5+PaO₂+WT	0.790	0.073	<0.001	0.750	0.700	0.116	0.272	0.982	0.949
				(0.615 to 0.884)	(0.557 to 0.842)	(0.016 to 0.215)	(0.134 to 0.409)	(0.940 to 1.000)	(0.880 to 1.000)
%CSA_<5+PaO₂	0.796	0.069	0.004	0.700	0.800	0.156	0.343	0.981	0.947
				(0.557 to 0.842)	(0.676 to 0.923)	(0.043 to 0.268)	(0.195 to 0.490)	(0.938 to 1.000)	(0.877 to 1.000)
%CSA_<5+WT	0.741	0.079	0.002	0.650	0.800	0.146	0.327	0.977	0.939
				(0.502 to 0.797)	(0.676 to 0.923)	(0.036 to 0.255)	(0.181 to 0.472)	(0.930 to 1.000)	(0.864 to 1.000)
PaO₂+WT	0.651	0.086	0.077	ND	ND	ND	ND	ND	ND
105 patients
%CSA_<5+PaO₂+WT	0.828	0.050	<0.001	0.750	0.800	0.165	0.359	0.984	0.955
				(0.667 to 0.832)	(0.723 to 0.876)	(0.094 to 0.235)	(0.267 to 0.450)	(0.959 to 1.000)	(0.915 to 0.994)
%CSA_<5+PaO₂	0.839	0.043	<0.001	0.950	0.538	0.038	0.235	0.995	0.986
				(0.908 to 0.991)	(0.442 to 0.663)	(0.001 to 0.074)	(0.153 to 0.316)	(0.981 to 1.000)	(0.963 to 1.000)
%CSA_<5+WT	0.765	0.060	<0.001	0.650	0.825	0.164	0.357	0.978	0.940
				(0.558 to 0.741)	(0.752 to 0.897)	(0.093 to 0.234)	(0.265 to 0.448)	(0.949 to 1.000)	(0.894 to 0.985)
PaO₂+WT	0.738	0.056	<0.001	0.750	0.613	0.092	0.224	0.979	0.943
				(0.667 to 0.832)	(0.519 to 0.706)	(0.036 to 0.147)	(0.144 to 0.303)	(0.951 to 1.000)	(0.898 to 0.987)

Data are absolute number with 95% CI.
AUC, area under curve; %CSA_<5, percentage of total lung area taken up by the cross-sectional area of pulmonary vessels less than 5 mm²; mPAP, mean pulmonary arterial pressure; ND, not determined; PaO₂, oxygen arterial partial pressure (mm Hg); prev, prevalence of severe PH in the COPD population; WT, mean wall thickness (mm).