Can I read Can the date of last menstrual period be trusted in the first trimester? Comparisons of gestational age measures from a prospective cohort study in six low-income to middle-income countries on EtoBox?

Can the date of last menstrual period be trusted in the first trimester? Comparisons of gestational age measures from a prospective cohort study in six low-income to middle-income countries by Archana Patel; Carla M Bann; Vanessa R Thorsten; Sowmya R Rao; Adrien Lokangaka; Antoinette Tshefu Kitoto; Melissa Bauserman; Lester Figueroa; Nancy F Krebs; Fabian Esamai; Sherri Bucher; Sarah Saleem; Robert L Goldenberg; Elwyn Chomba; Waldemar A Carlo; Shivaprasad Goudar; Richard Derman; Marion Koso-Thomas; Elizabeth McClure; Patricia L Hibberd is a Medicine article available to read on EtoBox.

What is Can the date of last menstrual period be trusted in the first trimester? Comparisons of gestational age measures from a prospective cohort study in six low-income to middle-income countries about?

## Objectives We examined gestational age (GA) estimates for live and still births, and prematurity rates based on last menstrual period (LMP) compared with ultrasonography (USG) among pregnant women at seven sites in six low-resource countries. ## Design Prospective cohort study ## Setting and participants This study included data from the Global Network’s population-based Maternal and Newborn Health Registry which follows pregnant women in six low-income and middle-income countries (Democratic Republic of the Congo, Guatemala, India, Kenya, Pakistan and Zambia). Participants in this analysis were 42 803 women, including their 43 230 babies, who registered for the study in their first trimester based on GA estimated either by LMP or USG and had a live or stillbirth with an estimated GA of 20–42 weeks. ## Outcome measures GA was estimated in weeks and days based on LMP and/or USG. Prematurity was defined as GA of 20 weeks+0 days through 36 weeks+6 days, calculated by both USG and LMP. ## Results Overall, average GA varied ≤1 week between LMP and USG. Mean GA for live births by LMP was lower than by USG (adjusted mean difference (95% CI) = −0.23 (–0.29 to –0.17) weeks). Among stillb

Who reads Can the date of last menstrual period be trusted in the first trimester? Comparisons of gestational age measures from a prospective cohort study in six low-income to middle-income countries?

Author

Archana Patel; Carla M Bann; Vanessa R Thorsten; Sowmya R Rao; Adrien Lokangaka; Antoinette Tshefu Kitoto; Melissa Bauserman; Lester Figueroa; Nancy F Krebs; Fabian Esamai; Sherri Bucher; Sarah Saleem; Robert L Goldenberg; Elwyn Chomba; Waldemar A Carlo; Shivaprasad Goudar; Richard Derman; Marion Koso-Thomas; Elizabeth McClure; Patricia L Hibberd

Publisher

BMJ

Published

2023

Language

EN

Field

Medicine (Health Sciences)