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International Gestational Age-Specific Centiles For Umbilical Artery Doppler Indices: A Longitudinal Prospective Cohort Study Of The Intergrowth-21st Project, Lior Drukker, Eleonora Staines-Urias, José Villar, Fernando C. Barros, Maria Carvalho, Shama Munim, Rose Mcgready, Francois Nosten, James A. Berkley, Shane A. Norris, Ricardo Uauy, Stephen H. Kennedy, Aris T. Papageorghiou
International Gestational Age-Specific Centiles For Umbilical Artery Doppler Indices: A Longitudinal Prospective Cohort Study Of The Intergrowth-21st Project, Lior Drukker, Eleonora Staines-Urias, José Villar, Fernando C. Barros, Maria Carvalho, Shama Munim, Rose Mcgready, Francois Nosten, James A. Berkley, Shane A. Norris, Ricardo Uauy, Stephen H. Kennedy, Aris T. Papageorghiou
Department of Obstetrics & Gynaecology
Background: Reference values for umbilical artery Doppler indices are used clinically to assess fetal well-being. However, many studies that have produced reference charts have important methodologic limitations, and these result in significant heterogeneity of reported reference ranges.
Objectives: To produce international gestational age-specific centiles for umbilical artery Doppler indices based on longitudinal data and the same rigorous methodology used in the original Fetal Growth Longitudinal Study of the INTERGROWTH-21st Project.
Study design: In Phase II of the INTERGROWTH-21st Project (the INTERBIO-21st Study), we prospectively continued enrolling pregnant women according to the same protocol from 3 of the original …