Table 7 Diagnostic accuracy (mean and 95% confidence interval) of the traditional FOT parameters in the diagnostic of respiratory abnormalities in patients with work-related asthma
| AUC | Se (%) | Sp (%) | Cut-off | |
|---|---|---|---|---|
| R0 |
0.687 0.556–0.799 |
45.1 27.3–64.0 |
93.5 78.6–99.2 | > 3.53 |
| Rm |
0.634 0.502–0.753 |
35.4 19.2–54.6 |
96.7 83.3–99.9 | > 3.54 |
| R4 |
0.673 0.542–0.787 |
38.7 21.8–57.8 |
96.7 83.3–99.9 | > 3.70 |
| R12 |
0.635 0.503–0.753 |
38.7 21.8–57.8 |
87.1 70.2–96.4 | > 3.13 |
| R20 |
0.513 0.383–0.642 |
100 88.8–100.0 |
12.9 3.6–29.8 | > 1.49 |
| S |
0.840 0.745–0.934 |
67.7 48.6–83.3 |
80.6 62.5–92.5 | ≤ − 23.3 |
| R4 − R20 |
0.795 0.673–0.887 |
80.6 62.5–92.5 |
64.5 45.4–80.8 | > 0.16 |
| Xm |
0.826 0.724–0.929 |
67.7 48.6–83.3 |
87.1 70.2–96.4 | ≤ − 0.03 |
| Fr |
0.929 0.835–0.979 |
74.2 55.4–88.1 |
100 88.8–100.0 | > 14.7 |
| Cdyn |
0.695 0.565–0.806 |
48.3 30.2–66.9 |
90.3 74.2–98.0 | ≤ 12.41 |
| Axt |
0.875 0.767–0.945 |
70.9 52.0–85.8 |
96.7 83.3–99.9 | > 13.56 |
| Axi |
0.819 0.701–0.906 |
80.6 62.5–92.5 |
67.7 48.6–83.3 | > 7.08 |
| Z4 |
0.690 0.558–0.822 |
48.3 30.2–66.9 |
87.1 70.2–96.4 | > 4.54 |