Airway obstruction (AO) | s3/s2 | Combined capnovolumetric score | ||||||
---|---|---|---|---|---|---|---|---|
cut-off | sensitivity (%) | specificity (%) | AUC ± SEM (95% CI) | cut-off | sensitivity (%) | specificity (%) | AUC ± SEM (95% CI) | |
AO in spirometry / bodyplethysmography* | 0.10 | 47.7 (42.7;52.8) | 79.0 (76.3; 81.6) | 0.678 ± 0.017 (0.645; 0.710) | 0.26 | 69.8 (65.1; 74.7) | 71.7 (67.7; 73.7) | 0.772 ± 0.015 (0.743; 0.801) |
FEV1 ≤ 80 | 0.10 | 46.2 (41.7; 50.8) | 81.0 (78.2; 83.6) | 0.699 ± 0.015 (0.669; 0.729) | 0.26 | 64.8 (60.5; 69.3) | 72.7 (69.0; 75.1) | 0.743 ± 0.015 (0.713; 0.772) |
FEV1 ≤ 50 | 0.10 | 75.9 (67.1; 83.0) | 75.8 (73.3; 78.1) | 0.851 ± 0.016 (0.820; 0.883) | 0.26 | 88.9 (80.5; 92.8) | 62.6 (60.6; 66.1) | 0.854 ± 0.019 (0.818; 0.890) |
FEV1 ≤ 30 | 0.10 | 86.7 (70.3; 94.7) | 72.8 (70.3; 75.2) | 0.887 ± 0.025 (0.838; 0.935) | 0.26 | 93.3 (78.7; 98.2) | 60.3 (57.6; 63.0) | 0.860 ± 0.025 (0.810; 0.909) |