| Cutoff (dB/m) | Sensitivity (%, 95% CI) | Specificity (%, 95% CI) | PPV (%) | NPV (%) | AUC (95% CI) |
---|---|---|---|---|---|---|
S0 vs. S1-S3 (≥6%) | 241 | 98.7 (92.9–100.0) | 80.0 (44.4–97.5) | 96.2 | 87.5 | 0.941 (0.868–0.980) |
S0-S1 vs. S2-S3 (≥17.5%) | 299 | 80.4 (66.9–90.2) | 51.4 (34.0–68.6) | 70.0 | 65.4 | 0.734 (0.627–0.823) |
S0-S2 vs. S3 (≥23.3%) | 303 | 81.1 (64.8–92.0) | 57.1 (42.2–71.2) | 57.7 | 79.4 | 0.752 (0.647–0.839) |