SERPING1 and systemic lupus erythematosus: In cases where the power value was <0.7 or the risk for development of SLE did not differ significantly from that of HCs, the results of the age-adjusted odds ratios (ORs) were not considered for the levels of the following: The C1-INH, Ac-protein adduct, IgG anti-C1-INH367–385, IgA anti-C1-INH367–385, and IgG anti-C1-INH367–385 Ac (Table 1).