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aPL positivity at baseline among 956 participants
| Variable | aPL positivity n (%) |
|---|---|
| Overall aPL positivity | 197 (20.6%) |
| Anticardiolipin antibodies (aCL) | 165 (17.3%) |
| IgG | 43 (4.5%) |
| IgM | 126 (13.2%) |
| Antibodies to β2-glycoprotein I (anti-β2GPI) | 87 (9.1%) |
| IgG | 26 (2.7%) |
| IgM | 65 (6.8%) |
| Antiphosphatidyl-serine antibodies (aPS) | 58 (6.1%) |
| IgG | 12 (1.3%) |
| IgM | 46 (4.8%) |
