Stage 1 Hypertension in Nulliparous Pregnant Patients and Risk of Unplanned Cesarean Delivery.

Objective: The aim of the study is to determine whether stage 1 hypertension is a risk factor for cesarean at ≥39 weeks.

Study Design: This is a retrospective cohort study of nulliparas delivering at ≥39weeks. Exposure was defined as stage 1 hypertension and compared with normotension.