DISH, Mean (SD) or Frequency (%) | |||
---|---|---|---|
Characteristic | Yes, n = 78 | No, n = 234 | p* |
Age, yrs | 62.9 (8.9) | 49.3 (12.8) | < 0.0001 |
Age at diagnosis of psoriasis, yrs | 39.1 (15.4) | 28.3 (14.1) | < 0.0001 |
Age at diagnosis of PsA, yrs | 48.0 (13.0) | 36.5 (12.1) | < 0.0001 |
Duration of psoriasis, yrs | 23.9 (14.7) | 21.0 (13.1) | 0.01 |
Duration of PsA, yrs | 15.1 (11.7) | 12.8 (10.3) | 0.03 |
Sex, males/females (%) | 57 (73.1)/21 (26.9) | 171 (73.4)/62 (26.6) | NS |
Body mass index | 32.9 (5.6) | 28.7 (5.8) | < 0.0001 |
Obesity (%) | 31 (70.5) | 50 (33.8) | < 0.0001 |
Enthesitis (%) | 8 (10.3) | 26 (11.2) | 0.88 |
Damaged joint count | 11.9 (16.4) | 6.7 (11.6) | < 0.0001 |
Active joint count | 10.5 (10.9) | 8.1 (9.3) | 0.27 |
Diabetes (%) | 21 (28.0) | 22 (9.8) | < 0.0001 |
Hypertension (%) | 39 (50.0) | 58 (24.9) | < 0.0001 |
Angina (%) | 3 (3.9) | 3 (1.3) | 0.15 |
Myocardial infarction (%) | 2 (3.1) | 2 (1.1) | 0.25 |
Inflammatory back pain (%) | 10 (18.5) | 36 (21.7) | 0.88 |
C-reactive protein | 10.8 (12.5) | 10.0 (13.5) | 0.79 |
Erythrocyte sedimentation rate | 20.6 (16.9) | 14.4 (15.4) | < 0.0001 |
Elevated uric acid levels (%) | 12 (16.0) | 15 (7.0) | 0.01 |
NSAID (%) | 45 (72.6) | 131 (66.5) | 0.26 |
DMARD (%) | 39 (61.9) | 124 (63.9) | 0.63 |
Biologics | 14 (28.0) | 55 (31.8) | 0.69 |
UVT (%) | 8 (11.0) | 30 (13.9) | 0.53 |
Radiographic damage (%) | 66 (84.6) | 158 (67.8) | < 0.0001 |
Modified Steinbrocker score (%) | 32.0 (39.8) | 19.5 (31.4) | 0.0001 |
Calcaneal spurs (%) | 65 (83.3) | 142 (60.9) | < 0.0001 |
Syndesmophytes (%) | 30 (38.5) | 43 (18.7) | < 0.0001 |
Classical | 24 (30.8) | 32 (13.9) | < 0.0001 |
Paramarginal | 18 (23.1) | 21 (9.1) | < 0.0001 |
Sacroiliitis (%) | 37 (47.4) | 110 (47.2) | 0.70 |
Grade IV sacroiliitis (%) | 11 (14.5) | 18 (7.8) | 0.01 |
HLA-B27 | 8 (11.8) | 30 (14.8) | 0.42 |
HLA-C6 (%) | 13 (19.1) | 58 (28.6) | 0.02 |
HAQ score | 0.86 (0.74) | 0.56 (0.62) | 0.0007 |
BASMI score | 5.8 (2.1) | 5.1 (2.6) | < 0.0001 |
Left cervical spine rotation, degrees | 63.1 (19.6) | 73.8 (15.9) | < 0.0001 |
Right cervical spine rotation, degrees | 62.9 (18.3) | 73.9 (17.1) | < 0.0001 |
Occiput to wall distance, cm | 3.7 (5.2) | 1.1 (4.9) | < 0.0001 |
Tragus to wall distance, cm | 13.2 (4.1) | 12.0 (8.2) | 0.09 |
Modified Schober’s test, cm | 4.4 (1.3) | 4.7 (1.2) | 0.02 |
Internal rotation of hip, cm | 29.8 (12.4) | 36.4 (11.5) | < 0.0001 |
Intermalleolar distance, cm | 95.1 (23.3) | 105.9 (24.4) | < 0.0001 |
Left lateral flexion**, cm | 13.8 (6.4) | 17.1 (4.5) | < 0.0001 |
Right lateral flexion**, cm | 13.0 (4.5) | 17.5 (4.6) | < 0.0001 |
INSPIRE method, cm | 26.2 (11.2) | 32.2 (9.6) | < 0.0001 |
Chest expansion at xyphisternum, cm | 4.9 (1.7) | 6.6 (6.6) | 0.0002 |
↵* McNemar test for categorical variables and paired t test for continuous variables (takes matching into consideration).
↵** DOMJAN method. PsA: psoriatic arthritis; NSAID: nonsteroidal antiinflammatory drug; DMARD: disease-modifying antirheumatic drug; HAQ: Health Assessment Questionnaire; BASMI: Bath Ankylosing Spondylitis Metrology Index; UVT: ultraviolet therapy.