Definition of normal blood pressure at 11 to 14 weeks' gestation according to risk.

Objective: To define normal blood pressure at first trimester of pregnancy by performance for pre-eclampsia prediction.

Method: A cohort study in singleton pregnancies, according to the competing risks model for pre-eclampsia. Blood pressure was measured according to a standardized method at 11 to 14 weeks' gestation.

Reference values for uterine artery mean pulsatility index throughout pregnancy customized by parity, transvaginal measurement and blood pressure.

Introduction: Population-specific reference ranges for uterine artery (UtA) mean pulsatility index (PI) throughout pregnancy have been shown to be of value in antenatal care.

Objective: To construct reference values for UtA mean PI throughout pregnancy, customized by maternal characteristics, transvaginal measurement and blood pressure in a Mexican population.

Methods: Cross-sectional study in 2286 normal singleton pregnancies in Mexico City.

Validation of a preeclampsia early screening test in a Mexican population.

Background: No preeclampsia screening test has been validated in our country.

Objective: To assess the fit and performance of the FMF 4.0 Bayesian algorithm in a Mexican population.