Demographic and clinical characteristics.
| No. patients | 14 |
| Female | 10 |
| Median age at SpA diagnosis, yrs | 43.5 (19–63) |
| SpA | |
| Ankylosing spondylitis | 11 |
| Psoriatic arthritis | 2 |
| SAPHO | 1 |
| HLA-B27 | |
| Positive | 3 |
| Negative | 9 |
| Unknown | 2 |
| Median age at TA diagnosis, yrs | 48.5 (20–64) |
SpA: spondyloarthritis; SAPHO: synovitis, acne, pustulosis, hyperostosis, and osteitis syndrome; TA: Takayasu arteritis.