Comparison of demographic and laboratory data between patients with or without subclinical disease
| Subclinical disease (n = 51) | No subclinical disease (n = 29) | Significance | |
|---|---|---|---|
| Female sex, No (%) | 19/51 (37) | 20/29 (67) | NS |
| Age (years), mean | 36 | 38 | NS |
| CRP >100 g/l, No (% of tested) | 34/51 (67) | 20/29 (67) | NS |
| RF >40 IU/l, No (% of tested) | 10/51 (20) | 2/29 (7) | NS |
| DR4 and/or DR1, No (%) | 26/51 (51) | 21/29 (72) | NS |
| HLA-B27, No (%) | 15/51(29) | 3/29 (10) | NS |