Sensitivity, specificity, and accuracy of lung function parameters within the 3 diagnostic groups
| Parameters | Reliability | Asthma (n = 198) | ACO (n = 152) | COPD (n = 338) | All (n = 688) | |
|---|---|---|---|---|---|---|
| VTGFRC | d | Sensitivity (%) | 77.1 | 93.8 | 98.4 | 93.8 |
| Specificity (%) | 66.1 | 48.7 | 6.5 | 52.4 | ||
| e | Accuracy (%) | 70.7 | 82.2 | 89.9 | 82.7 | |
| sWOB | d | Sensitivity (%) | 84.3 | 88.5 | 96.4 | 92.6 |
| Specificity (%) | 40.9 | 23.1 | 41.9 | 37.3 | ||
| e | Accuracy (%) | 59.1 | 71.7 | 91.4 | 80.5 | |
| sReff | d | Sensitivity (%) | 100 | 94.7 | 98.7 | 98.0 |
| Specificity (%) | 30.4 | 15.4 | 32.3 | 27.6 | ||
| e | Accuracy (%) | 59.6 | 74.3 | 92.6 | 79.1 | |
| FRCpleth | d | Sensitivity (%) | 50.6 | 68.1 | 69.1 | 65.8 |
| Specificity (%) | 95.7 | 100 | 96.8 | 96.8 | ||
| e | Accuracy (%) | 76.8 | 74.3 | 71.6 | 74.1 | |
| DLCO | d | Sensitivity (%) | 84.3 | 49.6 | 26.4 | 41.2 |
| Specificity (%) | 10.4 | 30.8 | 12.9 | 15.1 | ||
| e | Accuracy (%) | 41.4 | 44.7 | 25.1 | 34.2 | |
| FEF25–75 | d | Sensitivity (%) | 33.7 | 30.1 | 25.7 | 28.0 |
| Specificity (%) | 1.7 | 0 | 16.1 | 3.8 | ||
| e | Accuracy (%) | 15.2 | 22.4 | 24.9 | 21.5 | |