IgM RF + | IgM RF - | P value | Anti-CCP + | Anti-CCP - | P value | |
---|---|---|---|---|---|---|
n = 321 | n = 257 | n = 274 | n = 304 | |||
BAFF | 0.7 (0.5–0.9) | 0.7 (0.5–1.0) | 0.18 | 0.7 (0.5–0.9) | 0.7 (0.5–0.9) | 0.18 |
Beta2–microglobulin | 2.1 (1.8–2.4) | 1.9 (1.6–2.3) | 0.01 | 2.0 (1.7–2.4) | 1.9 (1.6–2.4) | 0.30 |
Total IgG | 14.0 (12.0–16.9) | 13.0 (11.1–15.1) | <10-4 | 14.4 (12.4–17.1) | 12.9 (11.1–15.9) | <10-4 |
Total IgA | 2.9 (2.1–3.7) | 2.5 (1.9–3.3) | <10-4 | 3.1 (2.3–3.8) | 2.4 (1.8–3.2) | <10-4 |
Total IgM | 1.6 (1.2–2.2) | 1.3 (1.1–1.8) | <10-4 | 1.6 (1.2–2.3) | 1.4 (1.0–1.9) | <10-4 |
Kappa free light chain | 15.8 (12.2–20.6) | 12.7 (9.5–16.8) | <10-4 | 16.3 (12.7–20.6) | 12.7 (9.7–17.1) | <10-4 |
Lambda free light chain | 18.6 (14.4–25.0) | 15.0 (11.8–19.6.) | <10-4 | 19.3(14.9–24.9) | 15.1 (11.9–19.9) | <10-4 |