| |
Early axial SpA (n =20)
|
Controls (n = 13)
|
p-values
|
|---|
|
Age when diagnosis was made (yr)
|
35.3 ± 12.5
|
42.5 ± 13.4
|
0.128
|
|
Age of symptom onset (yr)
|
33.2 ± 13.5
|
34.2 ± 13.4
|
0.945
|
|
Body mass index (BMI)
|
24.2 ± 4.5
|
23.8 ± 1.4
|
0.905
|
|
Gender ratio (M:F)
|
12:8
|
4:9
|
0.157
|
|
HLA-B27 (+)
|
10/20
|
0/13
|
0.002*
|
|
Peripheral arthritis (+)
|
10/20
|
0/13
|
0.002*
|
|
Enthesitis (+)
|
3/20
|
0/13
|
0.261
|
|
Uveitis (+)
|
1/20
|
0/13
|
1.000
|
|
Family history of SpA (+)
|
2/20
|
0/13
|
0.507
|
|
ESR (mm/h)
|
27.9 ± 7.0
|
10.5 ± 3.2
|
0.032*
|
|
CRP (mg/L)
|
1.7 ± 0.6
|
0.2 ± 0.1
|
0.004*
|
- SpA = spondyloarthritis; ESR = erythrocyte sedimentation rate; CRP = C-reactive protein.
- *Statistically significant.
