Number of patients (percentages) fulfilling the 1958 and the 1987 revised ACR criteria for rheumatoid arthritis and the FSR criteria for the diagnosis of reactive arthritis in the different diagnostic categories
| Criteria sets | Expert diagnoses | Other diagnoses (n=37) | |||||
|---|---|---|---|---|---|---|---|
| UA (n=117) | RA (n=39) | ReA (n=24) | |||||
| 1958 ARA criteria (⩾5 positive) | 23 (20) | 39 (100) | 4 (17) | 3 (8) | |||
| 1987 ACR criteria (⩾4 positive) | 15 (13) | 35 (90) | 0 (0) | 2 (5) | |||
| FSR criteria (⩾3 positive) | 14 (12) | 0 (0) | 19 (79) | 1 (3) | |||