Skip to main content

Advertisement

Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Table 1 Baseline characteristics and SpA features of chronic back pain patients included in the SPACE cohort (n = 719)

From: Are gender-specific approaches needed in diagnosing early axial spondyloarthritis? Data from the SPondyloArthritis Caught Early cohort

Characteristic Value
Male gender, n (%) 275 (38)
Age at CBP onset (years), mean (SD) 29.0 (8.0)
Duration of CBP (months), mean (SD) 13.2 (6.9)
Alternating buttock pain, n (%) (N = 454a) 225 (55)
IBP, n (%) 499 (70)
Response to NSAIDs, n (%) 316 (45)
Family history of SpA, n (%) 305 (43)
Peripheral arthritis, n (%) 111 (15)
Heel enthesitis, n (%) 142 (20)
Dactylitis, n (%) 39 (5)
Uveitis, n (%) 58 (8)
Psoriasis, n (%) 88 (12)
IBD, n (%) 48 (6)
HLA-B27+, n (%) 315 (44)
Elevated CRP/ESR, n (%) 217 (30)
MRI-SIJ+, n (%) 234 (32)
X-SIJ+, n (%) 91 (12)
Any positive imaging,b n (%) 250 (34)
  1. SpA spondyloarthritis, SPACE SPondyloArthritis Caught Early, CBP chronic back pain, IBP inflammatory back pain, NSAID non-steroidal anti-inflammatory drug, IBD inflammatory bowel disease, HLA human leukocyte antigen, CRP C-reactive protein, ESR erythrocyte sedimentation rate, MRI-SIJ magnetic resonance imaging of sacroiliac joints, X-SIJ plain radiograph of sacroiliac joints
  2. aMissing data < 5% unless otherwise indicated
  3. bMRI-SIJ+ and/or X-SIJ+