ArticleThe Lancet. Global health2020
Performance of late pregnancy biometry for gestational age dating in low-income and middle-income countries: a prospective, multicountry, population-based cohort study from the WHO Alliance for Maternal and Newborn Health Improvement (AMANHI) Study Group.
Article in The Lancet. Global health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 26 papers, 4 of them syntheses that pooled it.
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Who cites it
26 citing papers in PubMed, 4 syntheses or guidelines pooled it, 36 citations in OpenAlex.
- Assessing the diagnostic accuracy of postnatal clinical scoring methods and foot length measurement for estimating gestational age and birthweight of newborns in low- and middle-income countries: a systematic review and meta-analysis.BMJ paediatrics open · 2024Pooled it
- Second and third trimester estimation of gestational age using ultrasound or maternal symphysis-fundal height measurements: A systematic review.BJOG : an international journal of obstetrics and gynaecology · 2022Pooled it
- Training in Ultrasound to Determine Gestational Age in Low- and Middle- Income Countries: A Systematic Review.Frontiers in global women's health · 2022Pooled it
- Pooled it
- A FOS/NFKB1-associated Hofbauer cell subset mediates placental niche dysregulation in early-onset fetal growth restriction.Frontiers in cell and developmental biology · 2026Article
- Postnatal gestational age determination by ultrasonographic measurement of transverse cerebellar diameter: A simulation study.PloS one · 2026Article
- Born too soon: global epidemiology of preterm birth and drivers for change.Reproductive health · 2025Article
- Measuring ENAP interventions for small and/or sick newborns in routine health information systems: indicators and considerations from a WHO expert consultation.Journal of global health · 2025Article
- Accuracy of Transverse Cerebellar Diameter in Estimating Gestational Age in the Second and Third Trimester: A Prospective Study in Saudi Arabia.Diagnostics (Basel, Switzerland) · 2025Article
- Accuracy of ultrasonographic transcerebellar diameter for dating in third trimester of pregnancy in Nigerian women: a cross-sectional study.BMC medical imaging · 2025Article
- Comparison of Gestational Age Assessment Methods in the Second and Third Trimesters: Evaluating Alternative Approaches Against Ultrasound in Urban Burkina Faso.Journal of clinical medicine · 2025Article
- Observational
- Risk factors for small for gestational age as defined by a birthweight z-score below minus one: A prospective observational study.Medical research archives · 2024Article
- Maternal serum biomarkers of placental insufficiency at 24-28 weeks of pregnancy in relation to the risk of delivering small-for-gestational-age infant in Sylhet, Bangladesh: a prospective cohort study.BMC pregnancy and childbirth · 2024Article
- Utilization of third-trimester fetal transcerebellar diameter measurement for gestational age estimation: a comparative study using Bland-Altman analysis.AJOG global reports · 2024Article
- Article
- Machine learning for accurate estimation of fetal gestational age based on ultrasound images.NPJ digital medicine · 2023Article
- Development of a Machine Learning Model for Sonographic Assessment of Gestational Age.JAMA network open · 2023Article
- Article
- Midwife-Led Ultrasound Scanning to Date Pregnancy in Malawi: Development of a Novel Training Program.Journal of midwifery & women's health · 2022Article
Corrections and comments
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- Erratum issued
Authors and funding
1 author at 1 institution in 1 country.
Funding
Abstract
backgroundWe aimed to evaluate and improve the accuracy of the ultrasound scan in estimating gestational age in late pregnancy (ie, after 24 weeks' gestation) in low-income and middle-income countries (LMICs), where access to ultrasound in the first half of pregnancy is rare and where intrauterine growth restriction is prevalent.
methodsThis prospective, population-based, cohort study was done in three LMICs (Bangladesh, Pakistan, and Tanzania) participating in the WHO Alliance for Maternal and Newborn Health Improvement study. Women carrying a live singleton fetus dated by crown-rump length (CRL) measurements between 8
findingsBetween Feb 7, 2015, and Jan 9, 2017, 1947 women were enrolled in the study. 1387 pregnant women had an ultrasound scan at 24
interpretationIncorporation of TCD and the use of new formulas in late pregnancy ultrasound scans could improve the accuracy of gestational age estimation in both appropriate-for-gestational-age and small-for-gestational-age infants in LMICs. Given the high rates of small-for-gestational-age infants in LMICs, these results might be especially relevant. Validation of this new formula in other LMIC populations is needed to establish whether the accuracy of the late pregnancy ultrasound can be narrowed to within approximately 2 weeks.
fundingBill & Melinda Gates Foundation.
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