Table 5 Receiver-operating characteristics

From: Sex-specific cardiopulmonary exercise testing parameters as predictors in patients with idiopathic pulmonary arterial hypertension

Populations studied

Variables

Cutoff value

Sensitivity

Specificity

AUC

95% CI

All patients (n=57)

Peak PETCO2

27.33

0.576

0.750

0.722

0.591–0.853

Male patients (n=21)

Peak PETCO2

20.50

0.917

0.778

0.870

0.000–1.000

Female patients(n=36)

Peak O2 pulse

6.25

0.571

0.933

0.733

0.568–0.898

  1. Abbreviations: AUC, area under the curve; CI, confidence interval; PETCO2, end tidal partial pressure of CO2.
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