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Table 3 Classification accuracy by disease activity category

From: Models solely using claims-based administrative data are poor predictors of rheumatoid arthritis disease activity

  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%)
  1. CCR correct classification rate, TPR true positive rate, PPV positive predicted value