| FNH | TCH | All |
Subjects | 50 | 50 | 100 |
Correlation between AHI and flow-RDI r | 0.95 | 0.93 | 0.94 (0.91–0.96) |
Difference between AHI and flow-RDI | -8.2±9.1 | -10.8±12.0 | -9.5±10.7 |
Diagnostic ability of flow-RDI | | | |
AHI >5 events·h−1 | | | |
Sensitivity | 0.96 | 0.96 | 0.96 (0.91–1.00) |
Specificity | 0.83 | 0.80 | 0.82 (0.59–1.00) |
P-LR | 5.7 | 4.8 | 5.3 (2.4–11.7) |
N-LR | 0.05 | 0.06 | 0.05 (0.03–0.09) |
AUC | 0.94 | 0.95 | 0.95 (0.90–0.99) |
AHI >15 events·h−1 | | | |
Sensitivity | 0.90 | 0.91 | 0.91 (0.84–0.98) |
Specificity | 0.90 | 0.73 | 0.82 (0.70–0.95) |
P-LR | 8.6 | 3.4 | 5.2 (3.9–6.8) |
N-LR | 0.11 | 0.12 | 0.11 (0.08–0.15) |
AUC | 0.97 | 0.94 | 0.96 (0.92–0.99) |
AHI >30 events·h−1 | | | |
Sensitivity | 0.83 | 0.93 | 0.89 (0.80–0.97) |
Specificity | 0.92 | 1.00 | 0.96 (0.90–1.00) |
P-LR | 10.8 | NA | 21.2 (8.3–54.6) |
N-LR | 0.18 | 0.07 | 0.12 (0.09–0.16) |
AUC | 0.96 | 0.99 | 0.98 (0.94–1.00) |