Table 4.

Predictive values and distribution of events.

Risk CalculatorHigh Risk (≥ 7.5%), nLow Risk (< 7.5%), nEvents in Patients with Low risk/total, n (% of total events)PPVNPV
ERS-RA (reported)27638918/73 (24.7)0.1990.954
ERS-RA (measured)3053609/73 (12.3)0.2100.975
ACC/AHA29237014/72 (19.4)0.1990.962
ACC/AHA × 1.537328910/72 (13.9)0.1660.965
  • 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.