Table 1

 Demographic and clinical variables at baseline, week 24 and at week 54 of patients with ankylosing spondylitis (n = 38)

VariablesBaselineWeek 24Week 54
BASDAI, Bath Ankylosing Spondylitis Disease Activity Index (0–10 cm); GDA VAS, Global Disease Activity Visual Analogue Scale (0–10 cm); HLA B27, human lymphocyte antigen B27; IBD, inflammatory bowel disease.
Except when indicated otherwise, the values are the mean (SD).
†Mean of item 5+6 of the BASDAI (0–10 cm).
Compared with baseline: ‡p<0.001; §p = 0.005; ¶p = 0.003.
Male gender (%)26 (68)
Age (years)40 (10)
HLA B27+ (%)32 (84)
IBD (%)6 (16)
Use of corticosteroids (%)3 (8)
Use of other immunosuppressives (%)6 (16)
BASDAI6.4 (1.2)3.6 (2.6)‡4.1 (3.0‡
Morning stiffness†6.3 (2.2)3.0 (2.5)‡3.5 (3.2)‡
GDA6.8 (1.3)4.3 (2.9)‡4.9 (3.4)§
C-reactive protein (normal<8.0 mg/l)37 (34.2)9.3 (10.7)‡15.8 (21.1)¶
Detectable serum trough infliximab (%)031 (82)27 (71)
Anti-infliximab (%)07 (18)11 (29)