Table 2

Outcome of pregnancies, by treatment in the first trimester

Oral anticoagulantAdjusted heparin
n%(95% CI)n%(95% CI)
Pregnancies6131
Liveborn infants
 Healthy babies4574(60.7 to 83.8)2581(61.9 to 91.2)
 Hydrocephalus10
Low birth weight711(5.1 to 23)619(8.12 to 38)
Deliveries
 Vaginal3456(42.5 to 68)1135(20 to 55)
 Caesarean1220(11 to 32)1445(27.8 to 64)
  • CI, confidence interval.