Table 1 Participant characteristics compared between the ankylosing spondylitis and psoriatic arthritis groups
Characteristics | All (n = 319) | Ankylosing spondylitis (n = 153) | Psoriatic arthritis (n = 166) | p-value†|
|---|---|---|---|---|
Age (yrs), mean ± SD | 45.5 ± 12.2 | 41.7 ± 11.2 | 49.0 ± 12.1 | < 0.001 |
Female gender, n (%) | 148 (46.4%) | 59 (38.6%) | 89 (53.6%) | 0.007 |
Disease duration (yrs), median (IQR) | 5.0 (8.0) | 10.0 (15.0) | 3.0 (5.8) | < 0.001 |
Hypertension, n (%) | 71 (22.3%) | 25 (16.3%) | 46 (27.7%) | 0.015 |
Diabetes, n (%) | 34 (10.7%) | 6 (3.9%) | 28 (16.9%) | < 0.001 |
Dyslipidemia, n (%) | 54 (16.9%) | 18 (11.8%) | 36 (21.7%) | 0.018 |
Current smoker, n (%) | 27 (8.5%) | 12 (7.8%) | 15 (9.0%) | 0.702 |
Ex-smoker, n (%) | 28 (8.8%) | 10 (6.5%) | 18 (10.8%) | 0.240 |
Current exercise, n (%) | 134 (42.0%) | 70 (45.8%) | 64 (38.6%) | 0.193 |
Occupational physical work, n (%) | 122 (38.2%) | 49 (32.0%) | 73 (44.0%) | 0.028 |
BMI (kg/m2), mean ± SD | 24.4 ± 4.9 | 23.4 ± 4.9 | 25.3 ± 4.7 | 0.001 |
ASDAS-CRP, mean ± SD | 2.1 ± 1.1 | 2.1 ± 1.1 | 1.9 ± 1.1 | 0.993 |
No. of SynAnk, median (IQR) | 3.0 (8.5) | 2.5 (11.0) | 4.0 (8.0) | 0.755 |
Current DMARDs, median (IQR) | 1.0 (0) | 1.0 (1.0) | 1.0 (1.0) | 0.424 |
Current NSAIDs, n (%) | 115 (36.1%) | 34 (33.7%) | 81 (37.2%) | 0.546 |