|
Age (yrs)
| 46.2 (12.3) | 46.9 (11.5) | 46.6 (11.5) |
|
Male, n (%)
| 77 (46.1) | 81 (49.1) | 88 (53.0) |
|
Evidence of current psoriasis, n (%)
| 152 (91.0) | 147 (89.1) | 153 (92.2) |
|
Time since first axial symptoms (yrs)
| 6.8 (7.7) | 7.4 (7.6) | 7.7 (9.5) |
|
Total back pain score, VAS
| 72.5 (13.8) | 73.6 (15.3) | 74.0 (13.7) |
|
Inflammatory back pain parameters, n (%)
|
| Onset of back pain is insidious | 150 (89.8) | 147 (89.1) | 152 (91.6) |
| Back pain improving with exercise | 148 (88.6) | 139 (84.2) | 146 (88.0) |
| Back pain worsening with rest | 152 (91.0) | 151 (91.5) | 157 (94.6) |
| Night pain with improvement upon getting up | 147 (88.0) | 147 (89.1) | 143 (86.1) |
| Awakening due to back pain in 2nd half of night | 143 (85.6) | 145 (87.9) | 137 (82.5) |
| Alternating buttock pain | 102 (61.1) | 98 (59.4) | 101 (60.8) |
| Back pain improved after NSAID intake in past | 136 (81.4) | 134 (81.2) | 138 (83.1) |
|
BASDAI
| 7.3 (1.2) | 7.2 (1.4) | 7.3 (1.2) |
|
HLA-B27 positive, n/M (%)
| 31/85 (36.5) | 24/82 (29.3) | 26/74 (35.1) |