Early risk assessment and aspirin prophylaxis did not reduce preterm preeclampsia in Sweden: a population-based study

The implementation of the Fetal Medicine Foundation method showed no reduction in preterm birth combined with preeclampsia in this intention-to-treat analysis. The Fetal Medicine Foundation method was both feasible and well accepted in this unselected population, demonstrating its applicability in routine clinical practice. Further population-based studies using a per-protocol approach are needed to evaluate the efficacy of aspirin prophylaxis among individuals identified as high risk according to the Fetal Medicine Foundation method.