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Table 4 Association between number of baseline ACPA reactivities and van der Heijde modified Sharp scores (erosion, joint space narrowing and total) and association between number of baseline ACPA reactivities and baseline erosive disease

From: The role of anti-citrullinated protein antibody reactivities in an inception cohort of patients with rheumatoid arthritis receiving treat-to-target therapy

  Number of ACPA reactivities  
0
n = 27
1–5
n = 39
6–8
n = 37
≥ 9
n = 114
p
value
vdHSS erosiona 3.0 [1.0, 5.8] 3.0 [1.5, 4.0] 3.0 [2.0, 4.0] 3.0 [1.0, 4.5] 0.87
vdHSS joint space narrowinga 1.5 [0.0, 4.8] 0.5 [0.0, 2.0] 0.5 [0.0, 3.0] 1.0 [0.0, 3.8] 0.54
vdHSS totala 3.0 [1.5, 11.2] 3.5 [1.5, 6.0] 4.5 [2.5, 7.0] 4.2 [1.5, 9.0] 0.83
Erosive diseaseb 15 (56) 21 (54) 21 (57) 60 (53) 0.97
  1. Abbreviations: ACPA Anti-citrullinated protein antibody, vdHSS van der Heijde modified Sharp score
  2. aMedian [25,75 percentile]
  3. bNumber (percentage)