Table 2.
First signs and symptoms attributable to psoriatic spondyloarthritis [74]
| First signs and symptoms, n (%) | Psoriatic spondyloarthritis | ||
|---|---|---|---|
| ≤2 years (n = 51) | >10 years (n = 187) | P value | |
| Low back pain | 13 (26) | 31 (17) | 0.15 |
| Sacroiliac syndrome | 6 (12) | 17 (9) | 0.59 |
| Neck pain | 1 (2) | 14 (7) | 0.20 |
| Dactylitis | 5 (10) | 17 (9) | 0.79 |
| Arthritis, lower limbs | 29 (57) | 131 (70) | 0.08 |
| Arthritis, upper limbs | 27 (53) | 106 (57) | 0.63 |
| Enthesitis | 5 (10) | 15 (8) | 0.78 |
(Adapted from: Rojas-Vargas M et al. First signs and symptoms of spondyloarthritis—data from an inception cohort with a disease course of two years or less (REGISPONSER-Early). Rheumatology (Oxford). 2009;48(4):404–409)
Significance obtained by the chi-square test for contingency tables
Comparison of REGISPONSER-Early (≤2 years) vs REGISPONSER-Late (>10 years)