Table 1

 Sampling age and time after injury or start of symptoms in the different study groups

GroupAge at sampling*Weeks from injury/onset of symptoms†
Values are *mean (SD) and †median (25th, 75th centile).
Control (n = 35)27.5 (7.73)33.5 (4.4, 164)
Injury (n = 283)33.0 (13.6)13.1 (1.1, 85)
Pseudogout (n = 65)63.9 (16.3)0.3 (0.14, 1.1)
Osteoarthritis (n = 105)60.5 (9.0)47.4 (3.9, 105)