Table 3.
Classification accuracy by disease activity category
| All clinical predictors | All predictors | Prescreening | |||
|---|---|---|---|---|---|
| 4 Categories | High (>5.1) | TPR | 10.5% | 9.9% | 10.8% |
| PPV | 57.9% | 62.0% | 63.0% | ||
| Moderate (3.2–5.1) | TPR | 84.6% | 87.6% | 86.9% | |
| PPV | 42.5% | 43.0% | 43.0% | ||
| Low (2.6–3.1) | TPR | 20.2% | 17.9% | 18.3% | |
| PPV | 21.6% | 21.2% | 21.0% | ||
| Remission (<2.6) | TPR | 0.3% | 0.0% | 0.0% | |
| PPV | 100.0% | 0.0% | 0.0% | ||
| CCR (95% CI) | 39.9% (37.5–42.3%) | 40.5% (38.1–43.0%) | 40.5% (38.1–43.0%) | ||
CCR correct classification rate, TPR true positive rate, PPV positive predicted value