Table 7.
Performance of original and proposed GDS-5 against GDS-15
| Original GDS-5 | Proposed GDS-5 | |
|---|---|---|
| Sensitivity, % (95% CI) | 75.8 (67.42–82.91) | 90.6 (84.2–95.06) |
| Specificity, % (95%CI) | 96 (91.61–98.54) | 84.9 (78.17–90.16) |
| Positive likelihood ratio, (95% CI) | 19.2 (8.71–42.31) | 5.99 (4.09–8.76) |
| Negative likelihood ratio, (95%CI) | 0.25 (0.19–0.34) | 0.11 (0.06–0.19) |
| Positive predictive value, % (95%CI) | 94.2 (88.00–97.27) | 83.45 (77.50–88.06) |
| Negative predictive value, % (95% CI) | 82.5 (77.59–86.51) | 91.49 (86.21–94.87) |
| Accuracy, % (95% CI) | 86.8 (82.25–90.52) | 87.5 (83.05–91.14) |
| AUC (area under curve) (95% CI) | 0.919 (0.887–0.951) | 0.929 (0.900–0.959) |
| Cronbach’s Alpha | 0.416 | 0.623 |
| kappa | 0.73 | 0.75 |
| Spearman’s correlation coefficient, rs | 0.827 | 0.860 |