Figure 2. The concentrations of IgG, anti-ds-DNA, and globulin in systemic lupus erythematosus (SLE) patients with or without infection. A, data were obtained from 86 SLE patients with infection and 55 SLE patients without infection. B, 68 SLE patients with infection and 44 SLE patients without infection. C, SLE patients with infection (n=99) and SLE patients without infection (n=59) (Mann-Whitney U or t-test).