Table 5.
Diagnostic accuracy results and all optimal cut-off points.
| Diagnostic Accuracy and Cut-Off Points | Subclinical | Mild | Moderate | Severe |
|---|---|---|---|---|
| Mean ± SD | 16.88 ± 3.22 | 22.54 ± 1.76 | 26.75 ± 2.23 | 32.15 ± 2.99 |
| 95% CI | 16.04 to 17.72 | 21.76 to 23.32 | 25.55 to 27.94 | 30.34 to 33.96 |
| Cases, n (%) | 59 (53.64%) | 22 (20%) | 16 (14.55%) | 13 (11.82%) |
| Optimal cut-off | <23 | ≥23 | ≥26 | ≥31 |
| Sensitivity (95% CI) | - | 0.72 (0.49 to 0.89) | 0.81 (0.54 to 0.96) | 0.69 (0.38 to 0.91) |
| Specificity (95% CI) | - | 1 (0.93 to 1) | 1 (0.84 to 1) | 1 (0.79 to 1) |
| Positive predictive value (95% CI) | - | 1 (0.81 to 1) | 1 (0.76 to 1) | 1 (0.68 to 1) |
| Negative predictive value (95% CI) | - | 0.91 (0.78 to 1) | 0.88 (0.66 to 1) | 0.80 (0.52 to 1) |