Table 3.

PH prediction: diagnostic utility of various parameters (ROC analysis)

Parameter	AUC	95% CI	p
Age (years)	0.803	0.707–0.803	0.000033
Pack-years	0.665	0.555–0.665	0.03
6MWD (m)	0.761	0.663–0.761	0.0002
Sat 0 (%)	0.683	0.570–0.680	0.02
Sat 6 (%)	0.710	0.600–0.710	0.005
Desaturation (%)	0.696	0.585–0.696	0.01
DLCO (% pred)	0.710	0.602–0.713	0.006
TLC/DLCO	0.770	0.660–0.770	0.0004
FVC/DLCO	0.77	0.675–0.777	0.0069
VC/DLCO	0.78	0.666–0.788	0.0053
NT-proBNP (pg/ml)	0.645	0.528–0.645	0.07

AUC area under curve, DLCO diffusion lung capacity for carbon monoxide, 6MWD 6-min walk distance, NT-proBNP N-terminal brain natriuretic peptide, PH pulmonary hypertension, Sat0 baseline room air oxygen saturation, Sat6 sixth minute room air oxygen saturation, TLC/DLCO total lung capacity% predicted/diffusion lung capacity for carbon monoxide corrected for haemoglobin % predicted, FVC/DLCO forced vital capacity %predicted/diffusion lung capacity for carbon monoxide corrected for haemoglobin % predicted, VC/DLCO vital capacity %predicted/diffusion lung capacity for carbon monoxide corrected for haemoglobin % predicted