Table 3 Receiver operating characteristic (ROC) variables and univariate regression predicting the probability to have exercise ventilatory inefficiency or dynamic hyperinflation
Variables | ROC variables | Univariate regression | ||||||
|---|---|---|---|---|---|---|---|---|
Cut-off | AUC | 95% CI | Sensitivity | Specificity | OR | 95% CI | p value | |
Dependent variable: Ventilatory inefficiency | ||||||||
AT (score) | 7.9 | 0.682 | 0.535 to 0.829 | 0.714 | 0.583 | 3.50 | 1.10 to 11.09 | 0.033 |
Dependent variable: Dynamic hyperinflation | ||||||||
T (score) | 53.6 | 0.707 | 0.564 to 0.849 | 0.793 | 0.565 | 4.98 | 1.47 to 16.86 | 0.010 |
B (score) | 16.1 | 0.699 | 0.550 to 0.848 | 0.759 | 0.608 | 4.88 | 1.48 to 16.12 | 0.009 |
AWT (score) | 13.0 | 0.663 | 0.514 to 0.811 | 0.724 | 0.565 | 3.41 | 1.07 to 10.87 | 0.038 |
MP (score) | 11.7 | 0.711 | 0.570 to 0.851 | 0.793 | 0.521 | 4.18 | 1.24 to 14.09 | 0.021 |