Table 1

Demographic characteristics of patients

CharacteristicsValue
Men, n (%)53 (56.4)
Age (years), mean (SD)50 (11)
HLA positive, n (%)17/29 (58.6)
Clinical manifestation, n (%)
 Only axial63 (67)
 Axial and peripheral31 (33)
Concomitant treatment, n (%)
 Methotrexate (MTX)21 (22.3)
 Others DMARDs (OD)25 (26.6)
 MTX+OD26 (27.7)
 Monotherapy22 (23.4)
 Corticosteroid treatment38/91 (41.8)
Time in years receiving IFX treatment, mean (95% CI)6.99 (6.28 to 7.7)
Patients with ATI, n (%)24 (25.5)