Clinical characteristics of spondyloarthritis in 365 patients with ulcerative colitis (UC) in a population-based cohort from Olmsted County, Minnesota, USA, 1970–2004.
| Spondyloarthropathy Feature | Features Present Prior to UC Diagnosis, n (%) | Features Appearing After UC Diagnosis, n (%) |
|---|---|---|
| Psoriasis | 3 (0.8) | 6 (1.7) |
| Urethritis/cervicitis | 1 (0.3) | 0 (0) |
| Buttock pain | 3 (0.8) | 5 (1.4) |
| Plantar fasciitis | 2 (0.5) | 22 (6.3) |
| Achilles tendonitis | 0 (0) | 5 (1.4) |
| Sacroiliitis | 0 (0) | 6 (1.7) |
| Uveitis | 2 (0.5) | 10 (2.8) |
| Oligoarthritis | 2 (0.5) | 12 (3.4) |
| Polyarthritis | 1 (0.3) | 2 (0.5) |