Table 3

 Risk for high radiological progression rate based on the combinations of RF, the SE, and anti-CCP2 antibodies

(RF, SE, anti-CCP2 antibodies)No. of patients% Low% HighRisk for high radiological progression rate
+, Parameter present; −, parameter absent. Within each combination (first column), a distinction was made between those patients with a radiological progression rate in the lowest three quartiles (percentage given in column 3), and those patients with a radiological progression rate in the highest quartile (percentage given in column 4).
− − −2395.74.3Low
− + −3574.325.7Medium
− + +5976.323.7Medium
+ + +2560.040.0High