Ratios (%) between tcu-PA/T and u-PA:Ag and between scu-PA and u-PA:Ag (median and interquartile ranges) in the synovial fluid of RA and OA patients and of controls
| Parameter | RA (n=20) | OA (n=9) | Controls (n=14) |
| tcu-PA/T / u-PA:Ag (%) | 42.4** ‡ (13.6–51.4) | 9.0 (6.3–17.1) | 6.6 (4.6–8.9) |
| scu-PA / u-PA:Ag (%) | 14.1 (8.4–29.5) | 18.8 (12.2–24.5) | 22.9 (17.2–33.4) |
Comparisons are made between RA patients and controls (**p<0.001) and between RA patients and OA patients (‡p<0.005). No significant differences were found between the OA patients and the controls.