Table 2.

Renal BILAG response and the C1q/anti-CRP status demonstrated

	BILAG response <2	BILAG response ≥ 2
C1q low
Anti-CRP-positive	8	2
Anti-CRP-negative	5	5
Relative risk	1.60 (0.80 to 3.20)
C1q normal
Anti-CRP-positive	6	1
Anti-CRP-negative	3	8
Relative risk	3.14 (1.14 to 8.64)

Relative risks presented as chi-square (95% confidence interval). BILAG, British Isles Lupus Assessment Group; CRP, C-reactive protein.