Sensitivity and specificity of the initial slope ratio derived from the 99mTc-HDP radioactivity curve of patients with Raynaud’s phenomenon and controls.
| Initial Slope Ratio | Sensitivity, % | Specificity, % |
|---|---|---|
| 0.00 | 0.0 | 100.0 |
| 0.03 | 1.8 | 100.0 |
| — | — | — |
| 0.46 | 87.7 | 97.0 |
| 0.48 | 87.7 | 93.3 |
| 0.49 | 89.5 | 93.3 |
| 0.51* | 91.2 | 93.3 |
| 0.52 | 91.2 | 91.7 |
| 0.53 | 91.2 | 90.0 |
| — | — | — |
| 0.97 | 100.0 | 5.0 |
| 1.00 | 100.0 | 0.0 |
AUC-ROC = 0.968, SE = 0.014 (95% CI 0.941, 0.995).
↵* Optimal cutoff value.