Features of the gout population studied (n = 48 patients).
| Characteristic | Number or % |
|---|---|
| Mean age (SD)/range, yrs | 61 (12.8)/35–85 |
| Male, % | 73 |
| Black, % | 88 |
| Mean serum uric acid level (SD)/range, mg/dl | 7.7 (2.5)/2.8–13.6 |
| Duration of gout > 10 yrs, % | 54 |
| Clinical tophi present, % | 46 |
| Back pain present, % | 50 |
| Peripheral radiographic erosions, n (%) | 21/47 (45) |
| Axial gout erosions and/or tophi, n (%) | 17/48 (35) |
| Axial tophi, n (%) | 7/48 (15) |