Skip to main content
. 2017 May 1;214(5):1547–1555. doi: 10.1084/jem.20161451

Figure 4.

Figure 4.

Disease associations of serum IFNα in SLE patients. (A–D) Higher serum IFNα levels associate with higher SLEDAI (P < 0.001; A), ESR (P < 0.01; B), lower CH50 activity (P < 0.001; C), and number of specific autoantibodies against ribonucleoproteins (anti-Ro, La, Sm, RNP; P < 0.0001; D). IFNα <10 fg/ml: n = 25; IFNα = 10–300 fg/ml: n = 14; IFNα >300 fg/ml: n = 8; one-way ANOVA (Kruskal–Wallis) p-values are reported. (E) Profile of autoantibodies directed against ribonucleoproteins in patients with low, intermediate, and high IFN levels. Green, <25 U/ml; yellow, 25–50 U/ml; orange, 50–100 U/ml; red, >100 U/ml. A positive result is >25 U/ml. The total number of autoantibodies against ribonucleoproteins (anti-Ro, La, Sm, RNP) is significantly increased in patients with the highest levels of serum IFNα (two-way ANOVA, P < 0.0001). *, P < 0.05; **, P < 0.01; ***, P < 0.001; ****, P < 0.0001; n.s., not significant; horizontal lines indicate median.