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Performance of TBR, TTP, and clinical models for the testing cohort
| TBR model | TTP model | Clinical model | |
|---|---|---|---|
| AUC | 0.63 | 0.71 | 0.69 |
| AUC 95% CI | (0.47–0.78) | (0.57–0.84) | (0.50–0.86) |
| Accuracy | 66.7% | 64.3% | 57.1% |
| Sensitivity | 50.0% | 50.0% | 66.7% |
| Specificity | 73.3% | 70.0% | 53.3% |
| PPV | 42.9% | 40.0% | 36.4% |
| NPV | 78.6% | 77.8% | 80.0% |
CI confidence interval, TBR tumor-to-background ratio, TTP time-to-peak
