Frequencies of baseline variables in the groups treated or not treated with low-dose aspirin (LDA). All data are percent unless otherwise indicated.
| Characteristic | LDA Group (N* = 104) | Non-LDA Group (N* = 35) |
|---|---|---|
| Average maternal age, yrs ± SD | 34.8 ± 4.3 | 32.7 ± 3.4 |
| Previous pregnancy losses | 54.8 | 48.6 |
| Autoimmune disease | 45.2 | 45.7 |
| Medium-high level of aCL IgG | 17.3 | 45.7 |
| Medium-high level of aCL IgM | 15.7 | 23.1 |
| Medium-high level of anti-ß2-GPI IgG | 23.5 | 36.4 |
| Medium-high level of anti-ß2-GPI IgM | 19.6 | 30.8 |
| Lupus anticoagulant | 5.8 | 2.9 |
↵* No. pregnancies. aCL: anticardiolipin; GPI: glycoprotein.