FASLG and systemic lupus erythematosus: In total, 330 participants were included in the study (Table 1): 110 APS patients [70.9% female, mean age 45.4 years (SD 12.2), 61.8% PAPS, 38.2% SLE-APS, 47.2% triple aPL positive) and 110 age- and sex-matched DM patients and 110 age- and sex-matched HC.