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Table 3 Analysis of the relative weights of the serological criteria and their combinations

From: Improved RA classification among early arthritis patients with the concordant presence of three RA autoantibodies: analysis in two early arthritis clinics

 2010 ACR/EULARaConcordance2010 + Ccd.2010 + Ccd.’
StratumOR (95% CI) bOR (95% CI)OR (95% CI)OR (95% CI)
326.1 (18.0–37.8)7.5 (3.3–17.0)7.0 (4.0–12.2)
22.4 (1.6–3.7)1.7 (0.8–3.7) c1.6 (1.0–2.6) c
3Ab80.9 (37.0–177.1)11.4 (3.7–35.2)12.2 (4.9–30.2)
2Ab15.1 (10.0–22.9)2.8 (1.2–6.8)3.0 (1.7–5.3)
1Ab2.1 (1.4–3.0)0.9 (0.5–1.8) c
  1. aThe serological criteria from the 2010 ACR/EULAR RA classification criteria, the concordance (Ccd.) of autoantibodies, and their combination without modification (2010 + Ccd.) and after deleting the 1Ab stratum (2010 + Ccd’)
  2. bOR and their 95% confidence intervals
  3. cThis stratum did not contribute significantly to RA classification