Table 2 Characteristics of the ROC curves
|  | 6MWD (n = 308) | e\(\dot{V}\)O2max (n = 308) |
|---|---|---|
Cutoff values | 372.5 (m) | 30.8 (ml/kg/min) |
AUC | 0.758 | 0.912 |
Sensitivity (%) | 63.4 | 91.6 |
Specificity (%) | 79.3 | 79.3 |
Positive predictive value (%) | 47.9 | 57.0 |
Negative predictive value (%) | 87.9 | 96.9 |