A Multicenter Assessment of a Spontaneous Preterm Birth Risk Predictor

Exclusion Criteria

• •The subject has a planned cesarean section or induction of labor prior to 370/7 weeks of gestation
• •The subject has a planned cerclage placement for the current pregnancy
• •There is a known or suspected fetal anomaly or chromosomal abnormality
• •The subject has had a blood transfusion during the current pregnancy
• •The subject has known elevated bilirubin levels (hyperbilirubinemia)
• •The subject has taken or plans to take any of the following medications during the current pregnancy:
• •* Progesterone or progesterone-derivative medication after 13 6/7 weeks gestation
• •* Enoxaparin, heparin, heparin sodium, low molecular weight heparin after first day of last menstrual period
• •The subject has participated in, or plans to participate in, an interventional treatment study during the current pregnancy
• •The current pregnancy was previously a multiple gestation that is now a single fetus due to reduction, vanishing twin, etc.