| Cut-off point | Sensitivity | Specificity | AUC |
P
|
---|
VO2 at VT (ml/kg/min) | 10.5 | 0.659 | 0.633 | 0.666 | 0.007 |
Ve/VCO2 slope | 33.4 | 0.733 | 0.545 | 0.658 | 0.001 |
E-VCO2(L/min) | 0.6 | 0.659 | 0.633 | 0.646 | 0.017 |
R-PETCO2 (mm Hg) | 30.5 | 0.511 | 0.733 | 0.623 | 0.046 |
E-PETCO2 (mm Hg) | 32.5 | 0.716 | 0.567 | 0.67 | 0.005 |
â–³PETCO2(mm Hg) | 2.5 | 0.807 | 0.433 | 0.638 | 0.024 |
â–³CO2(L/min) | 0.3 | 0.739 | 0.533 | 0.636 | 0.027 |
- VO2 at VT Oxygen consumption per kilogram of weight per minute at anaerobic threshold, Ve/VCO2 slope Minute ventilation/ Carbon dioxide production slope, E-VCO2 Exercise carbon dioxide production, R-PETCO2 Rest partial pressure of end-tidal carbon dioxide, E-PETCO2 Exercise partial pressure of end-tidal carbon dioxide, â–³PETCO2 Margin of partial pressure of end-tidal carbon dioxide, â–³CO2 Margin of minute ventilation carbon dioxide production, AUC Area under the curve