Table 1: Complement function of the CP and AP, plasma concentrations of C3, C4, factor B, and C3d,g, and the C3d,g*1000/C3 ratio in one patient with SLE and one patient with a C2 deficiency.

CP (%)AP (%)C3 (g/L)C4 (g/L)Factor B
(g/L)
C3d,g
(mg/L)
C3d,g*1000/C3

SLE15450.530.070.187.013.2
C2 def5970.800.140.303.54.4
Reference interval 80–120 50–150 0.67–1.29 0.13–0.32 0.16–0.44<5.3<5.3