Table 3 Diagnostic validity of the scoring system at different cut-offs
Cut-off | Sensitivity (95% CI) (%) | Specificity (95% CI) (%) | PPV (95% CI) (%) | NPV (95% CI) (%) |
|---|---|---|---|---|
1 | 100 (89.7– 100) | 2.3 (0.28–8.0) | 28.6 (20.7–37.6) | 100 (15.8–100) |
2 | 94.1 (80.3–99,3) | 11.5 (5.6–20.1) | 29.4 (21.0–38.3) | 83.3 (51.6–97.9) |
3 | 88.2 (72.5–96,7) | 57.5 (46.4–68.0) | 44.8 (32.6–57.4) | 92.6 (82.1–97.9) |
4 | 85.3 (68.9–95,0) | 97.7 (91.9–99.7) | 93.5 (78.6–99.2) | 94.4 (87.5–98.2) |
5 | 52.9 (35.1–70,2) | 100 (95.8–100) | 100 (81.5–100) | 84.5 (76.0–90.9) |