Table 2

Baseline characteristics of International Map of Axial Spondyloarthritis patients with axial spondyloarthritis (N=5557 unless otherwise specified)

Mean±SD or n (%)
Total
Socio-demographic factors
Age (years)43.9±12.8
Gender, n: 5555
Female
3080 (55.4)
Educational level
University
2569 (46.2)
Employment status, n: 5183
 Employed2641 (51.0)
 Temporary sick leave653 (12.6)
 Permanent sick leave415 (8.0)
 Retired or early retired616 (11.9)
 Unemployed373 (7.2)
 Homemaker365 (7.0)
 Student120 (2.3)
Patient organisation membership
 Yes2407 (43.3)
Lifestyle factors
Physical activity, n: 54764468 (81.6)
Smoking, n: 52881128 (21.3)
Alcohol, n: 54621631 (29.9)
Patient-reported outcomes
BASDAI (0–10), n: 52955.4±2.1
Spinal Stiffness Index (3–12), n: 53717.6±2.5
Functional Limitation Index (0–54), n: 548219.8±15.4
Disease characteristics
Diagnostic delay (years), n: 53277.4±9.0
Symptom duration (years), n: 542117.1±13.3
Extra-musculoskeletal manifestations
Uveitis, n=50501171 (23.2)
Inflammatory bowel diseases, n=5156724 (14.0)
Treatments
Use of NSAIDs, n: 49953921 (78.5)
Use of csDMARDs, n: 49222137 (43.4)
Use of bDMARDs, n: 50342456 (48.8)
  • BASDAI, Bath Ankylosing Spondylitis Disease Activity Index; bDMARDs, biological disease-modifying antirheumatic drugs; csDMARDs, conventional synthetic disease-modifying antirheumatic drugs; NSAIDs, non-steroidal anti-inflammatory drugs.