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Table 2 Comparison at final evaluation between non-switchers and switchers

From: Factors associated with ASDAS remission in a long-term study of ankylosing spondylitis patients under tumor necrosis factor inhibitors

  Non-switchers (n = 42) Switchers (n = 36) P
BASDAI 1.7 ± 1.6 2.6 ± 2.0 0.041*
BASFI 2.8 ± 2.7 4.2 ± 3.0 0.034*
BASMI 2.9 ± 2.2 3.2 ± 2.1 0.635
ASQoL 3.5 (1.0, 8.0) 6.0 (1.5, 10.5) 0.057
CRP, mg/l 2.8 (1.3, 5.0) 4.0 (1.7, 8.6) 0.148
ESR, mm/hr 4.0 (2.0, 8.0) 5.0 (2.0, 15.5) 0.363
ASDAS – CRP 1.5 ± 0.7 2.0 ± 1.0 0.012*
Last anti-TNF treatment duration, weeks 206.6 (96.9, 287.9) 171.9 (101.6, 210.3) 0.146
  1. Values are expressed as mean (SD) and median (quartile). ASDAS Ankylosing Spondylitis Disease Activity Score, ASQoL Ankylosing Spondylitis Quality of Life, BASDAI Bath Ankylosing Spondylitis Disease Activity Index, BASFI Bath Ankylosing Spondylitis Functional Index, BASMI Bath Ankylosing Spondylitis Metrology Index, CRP C Reactive Protein, ESR Erythrocyte Sedimentation Rate, * P < 0.05