Baseline patient-reported outcomes. Values are mean ± SD or n (%).
| Characteristics* | Overall, n = 1530 | With Axial Involvement, n = 192 | Without Axial Involvement, n = 1338 | p |
|---|---|---|---|---|
| Patient pain, VAS 0–100 | 37.6 ± 29.3 | 47.7 ± 29.1 | 36.2 ± 29.1 | < 0.001 |
| Patient-reported fatigue, VAS 0–100 | 40.0 ± 29.5 | 50.2 ± 29.6 | 38.6 ± 29.2 | < 0.001 |
| Morning stiffness | < 0.001 | |||
| Yes | 1301 (88.6) | 173 (93.5) | 1128 (87.9) | |
| < 30 min | 375 (28.8) | 29 (16.8) | 346 (30.7) | |
| ≥ 30 min | 926 (71.2) | 144 (83.2) | 782 (69.3) | |
| HAQ, 0–3 | 0.6 ± 0.6 | 0.9 ± 0.7 | 0.6 ± 0.6 | < 0.001 |
| HAQ-S, 0–3 | 0.6 ± 0.7 | 0.9 ± 0.7 | 0.6 ± 0.6 | < 0.001 |
| EQ VAS, 0–100 | 72.3 ± 21.3 | 65.3 ± 22.0 | 73.3 ± 21.0 | < 0.001 |
| WPAI, % impairment | ||||
| Work time missed | 4.0 ± 14.6 | 10.0 ± 23.4 | 3.3 ± 13.0 | < 0.001 |
| Impairment while working | 16.7 ± 21.7 | 29.5 ± 27.6 | 15.0 ± 20.2 | < 0.001 |
| Overall work impairment | 18.5 ± 23.6 | 32.3 ± 29.7 | 16.8 ± 22.1 | < 0.001 |
| Activity impairment | 20.4 ± 24.3 | 37.0 ± 29.8 | 18.1 ± 22.5 | < 0.001 |
| Current employment | 911 (62.1) | 103 (55.1) | 808 (63.2) | 0.03 |
↵* All values were calculated based on available data. All variables had < 20% missing data except for WPAI (n, range 689–837). EQ VAS: EQ-5D visual analog scale; HAQ: Health Assessment Questionnaire; HAQ-S: HAQ for Spondyloarthropathies; VAS: visual analog scale; WPAI: Work Productivity and Activity Impairment questionnaire.