Table 1 Characteristics of SpA patients and healthy controls
Characteristics | SpA patients (n = 39) | HCs (n = 39) | |
|---|---|---|---|
2006 | 2010 | ||
Mean age, yr | 38 (23-49) | 42 (27-53) | 37 (23-58) |
Gender, % females | 56 | - | 64 |
HLA-B27-positive, % | 54 | - | ND |
Disease duration, mean, years | 8 (3-19) | ND | 0 |
Anti-TNF treatment | 3 | 6 | |
Average MRI activity score | |||
SIJ | 4.8 (2.0-2.1) | 2.5 (0.4-6.3) | ND |
Spine | 2.0 (0.0-3.3) | 1.0 (0.0-2.0) | ND |
Average MRI chronicity score | |||
SIJ | 12.0 (3.0-27.8) | 17.8 (3.0-31.5) | ND |
Spine | 0.0 (0.0-4.0) | 1.0 (0.0-5.5) | ND |
CRP (normal <8 mg/L) | 1.89 (1.26-3.36) | 1.3 (0.5-2.55) | ND |
BASDAI | 32 (14-53) | 28 (15-50) | ND |
BASMI | 0 (0-40) | 0 (0-10) | ND |
BASFI | 18 (6-33) | 14 (8-34) | ND |