Early erosions | Absence of early erosion | Univariate analysis: P value | Multivariate analysis: OR (95% CI), P value | |
---|---|---|---|---|
n = 138 | n = 377 | |||
Initial DAS28 | 5.4 (4.6–6.4) | 5.2 (4.3–6.5) | 0.1 | |
ESR, mm at 1st hour | 29.5 (13.0–54.0) | 20.5 (11.0–36.0) | 0.002 | 1.1 (0.9–1.3), 0.4 |
CRP, mg/L | 11.0 (4.0–33.1) | 9.0 (0–22.0) | 0.1 | |
IgM-RF-positive | 63.7% | 52.5% | 0.03 | 0.7 (0.4–1.3), 0.2 |
IgA-RF-positive | 64.5% | 45.9% | 0.0003 | 1.7 (1.1–2.7), 0.01 |
Anti-CCP-positive | 61.6% | 41.6% | <0.0001 | 2.3 (1.2–4.3), 0.008 |
BAFF, ng/mL | 0.7 (0.5–0.9) | 0.8 (0.5–1.0) | 0.5 | |
Beta2–microglobulin, mg/L | 2.1 (1.7–2.4) | 1.9 (1.7–2.4) | 0.08 | |
Total IgG, g/L | 13.7 (12.0–15.6) | 13.3 (11.5–15.9) | 0.2 | |
Total IgA, g/L | 3.0 (2.1–3.7) | 2.6 (1.9–3.4) | 0.003 | 1.1 (0.9–1.2), 0.4 |
Total IgM, g/L | 1.4 (1.1–2.1) | 1.5 (1.1–2.1) | 0.9 | |
Kappa free light chain, mg/L | 15.3 (11.9–20.7) | 13.9 (10.4–17.9) | 0.007 | 1.0 (0.9–1.1), 0.2 |
Lambda free light chain, mg/L | 18.3 (13.5–23.4) | 16.9 (12.8–21.9) | 0.1 |