Fig. 3

IFNα protein positivity is present in a subgroup of women with SLE. A Comparison of IFNα protein concentrations in plasma between pregnant women with SLE and healthy pregnant HC (combined data from trimesters one to three). B Plasma IFNα protein concentrations in the first, second, and third trimesters compared to late postpartum in women with SLE. The dotted line denotes the cut-off for IFNα positivity (136 fg/mL). **** p < 0.0001, Mann-Whitney U test