Table 2.
Area under the curve (AUC) and threshold that corresponds to the optimal operating point (T) of the ROC analysis
| AUC | T | |
|---|---|---|
| AHI (events/hours) | 0.97 | 10.50 |
| ODI (events/hour) | 0.93 | 10.00 |
| Mean SpO2 (%) | 0.05 | 97.20 |
| Nadir SpO2 (%) | 0.13 | 93.00 |
| FVC (L) | 0.21 | 4.02 |
| FVC (%) | 0.15 | 85.17 |
| FEV1(L) | 0.19 | 3.56 |
| FEV1 (%) | 0.21 | 78.55 |
| TLC (L) | 0.24 | 4.72 |
| TLC (%) | 0.10 | 124.0 |
| ΔVRC supine (%) | 0.93 | -6.16 |
| ΦTA supine (°) | 0.83 | -126.5 |
| RSBi seated (1/L min) | 0.77 | 126.9 |
| VT seated (L) | 0.28 | 0.44 |
| ΔVRC seated (%) | 0.18 | 100.0 |
| BMI (kg/m2) | 0.75 | 34.60 |
| Waist circumference (cm) | 0.72 | 82.80 |
| Neck circumference (cm) | 0.79 | 38.20 |
| Waist/height | 0.84 | 70.69 |
| Neck/height | 0.88 | 31.64 |
| FM (%) | 0.69 | 43.00 |
| Trunk FM (%) | 0.74 | 54.83 |