Table 1

Demographic and clinical data of the patients

CharacteristicsPatients with axSpA (n=100)nraxSpA (n=44)AS (n=56)p Value
Age, years40.3±10.439.1±9.841.2±10.90.5
Male sex, n (%)57 (57)14 (31.8)43 (76.%)<0.001
Symptom duration, years29.0±10.69.4±9.512.8±10.70.09
Duration since diagnosis, years6.4±8.45.0±6.87.5±9.40.3
HLA-B27-positive total, n=99 (%)87 (88)38 (86.4)49 (89.1)0.80
Clinical manifestations, current
Peripheral arthritis, n (%)18 (18)8 (18.2)10 (17.9)0.9
Enthesitis, n (%)2 (2)1 (2.3)1 (1.8)0.9
Uveitis, n (%)6 (6)3 (6.8)3 (5.4)0.8
Psoriasis, n (%)10 (10)4 (9.1)6 (10.7)0.8
Inflammatory bowel disease, n (%)6 (6)3 (6.8)3 (5.4)0.8
  • Values are the mean±SD unless otherwise indicated.

  • AS, ankylosing spondylitis; axSpA, axial spondyloarthritis; nraxSpA, non-radiographic axial spondyloarthritis.