Predictive values and distribution of events.
| Risk Calculator | High Risk (≥ 7.5%), n | Low Risk (< 7.5%), n | Events in Patients with Low risk/total, n (% of total events) | PPV | NPV |
|---|---|---|---|---|---|
| ERS-RA (reported) | 276 | 389 | 18/73 (24.7) | 0.199 | 0.954 |
| ERS-RA (measured) | 305 | 360 | 9/73 (12.3) | 0.210 | 0.975 |
| ACC/AHA | 292 | 370 | 14/72 (19.4) | 0.199 | 0.962 |
| ACC/AHA × 1.5 | 373 | 289 | 10/72 (13.9) | 0.166 | 0.965 |
PPV: positive predictive value; NPV: negative predictive value; ERS-RA: Expanded Cardiovascular Risk Prediction Score for Rheumatoid Arthritis; ACC/AHA: American College of Cardiology/American Heart Association.