Table 2.

Factors associated with inflammatory bowel disease (IBD) at the 5-year visit (M60; univariable analysis).

VariablesIBD+ vs IBD−, Prevalent M60
OR (95% CI) or mean (SD)p
DMARD use2.58 (1.35–5.08)0.002
NSAID score at 6 months17.00 (31.20) vs 19.87 (30.37)0.03
Sick leave, days20.80 (59.16) vs 11.35 (39.19)0.03
Anti-TNF useV(yes/no)2.11 (1.06–4.31)0.02
ASDAS CRP2.28 (0.85) vs 2.02 (0.83)0.03
BASFI29.04 (20.14) vs 22.08 (21.18)0.02
SF-36 physical39.26 (9.91) vs 43.59 (9.60)0.004
SF-36 mental41.2 (11.62) vs 45.2 (11.06)0.013
HAQ0.75 (0.58) vs 0.50 (0.51)0.004
ASQoL8.72 (5.65) vs 6.59 (5.37)0.012
No. tender joints5.84 (9.77) vs 2.37 (5.80)0.009
  • M60: Month 60; DMARD: disease-modifying antirheumatic drug; NSAID: nonsteroidal antiinflammatory drug; anti-TNF: anti-tumor necrosis factor; ASDAS: Ankylosing Spondylitis Disease Activity Score; CRP: C-reactive protein; BASFI: Bath Ankylosing Spondylitis Functional Index; SF-36: Medical Outcomes Study Short Form-36 questionnaire; HAQ: Health Assessment Questionnaire; ASQoL: Ankylosing Spondylitis Quality of Life score.