Some participants tested positive for more than one aPL test.
aCL - Anticardiolipin antibody positive; LAC - Lupus anticoagulant positive; B2GP1 – β2 Glycoprotein1 antibody positive; Double positive – any 2 of 3 above (aCL, B2GP1, LAC) testing positive in the same individual; Triple positive – all 3 testing positive in the same individual.