Table 3.
Clinical Features of ankylosing spondylitis present at time of diagnosis
| 1980-89 (N=24) | 1990-99 (N=23) | 2000-09 (N=39) | Total (N=86) | p value | |
|---|---|---|---|---|---|
| Radiographic evidence of sacroiliitis | 24 (100.0%) | 23 (100.0%) | 39 (100.0%) | 86 (100.0%) | 1.0 |
| Limitation of lumbar spine range of motion | 16 (67%) | 12 (52%) | 19 (497%) | 47 (55%) | 0.37 |
| Inflammatory back pain | 22 (92%) | 20 (87%) | 35 (90%) | 77 (90%) | 0.87 |
| Arthritis | 8 (33%) | 11 (48%) | 7 (18%) | 26 (30%) | 0.043 |
| Enthesitis | 1 (4%) | 2 (9%) | 4 (10%) | 7 (8%) | 0.69 |
| Uveitis | 6 (25%) | 6 (26%) | 16 (41%) | 28 (33%) | 0.31 |
| Dactylitis | 1 (4%) | 2 (9%) | 0 (0.0%) | 3 (4%) | 0.19 |
| Psoriasis | 2 (8%) | 6 (26%) | 2 (5%) | 10 (12%) | 0.038 |
| Crohn's disease/Ulcerative colitis | 2 (8%) | 2 (9%) | 5 (13%) | 9 (10%) | 0.81 |
| Good response to nonsteroidal antiinflammatory drugs* | 9 (69%) | 14 (88%) | 19 (66%) | 42 (72%) | 0.28 |
| Family history for spondyloarthropathy* | 3 (21%) | 7 (37%) | 8 (22%) | 18 (26%) | 0.43 |
| HLA-B27* | 16 (89%) | 13 (81%) | 31 (89%) | 60 (87%) | 0.74 |
*
Percentages calculated among patients with available data