Evidence map›Paper›PMID 32847549›Full record

ArticleBMC pregnancy and childbirth2020

Fetal biometry assessment with Intergrowth 21st's and Salomon's equations in rural Burkina Faso.

Biébo Bihoun, Serge Henri Zango, Maminata Traoré-Coulibaly, Innocent Valea, Raffaella Ravinetto, Jean-Pierre Van Geertruyden, Umberto D'Alessandro, Halidou Tinto, Annie Robert

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.3field-weighted citation impact, top 35% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 7 citations in OpenAlex.

  1. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 4 countries.

Biébo BihounIRSS-Clinical Research Unit of Nanoro, Nanoro, Burkina Faso. biebo.bihoun@uclouvain.be.
Serge Henri ZangoIRSS-Clinical Research Unit of Nanoro, Nanoro, Burkina Faso.
Maminata Traoré-CoulibalyIRSS-Clinical Research Unit of Nanoro, Nanoro, Burkina Faso.
Innocent ValeaIRSS-Clinical Research Unit of Nanoro, Nanoro, Burkina Faso.
Raffaella RavinettoPublic Health Department, Institute of Tropical Medicine, Antwerp, Belgium.
Jean-Pierre Van GeertruydenGlobal Health Institute, University of Antwerp, Antwerp, Belgium.
Umberto D'AlessandroMedical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, London, UK.
Halidou TintoIRSS-Clinical Research Unit of Nanoro, Nanoro, Burkina Faso.
Annie RobertIntitut de recherche expérimentale et clinique, Université catholique de Louvain, Brussels, Belgium.
Institut de Recherche en Sciences de la Santé · BFUCLouvain · BEInstituut voor Tropische Geneeskunde · BEMedical Research Council · GBUniversity of Antwerp · BE

Funding

European and Developing Countries Clinical Trials Partnership IP.2007.31080.01Medical Research Council MC_UP_A900_1119
6 · The paper itself

Abstract

backgroundUltrasound scanning during the 2nd or the 3rd trimester of pregnancy for fetal size disturbances screening is heavily dependent of the choice of the reference chart. This study aimed to assess the agreement of Salomon and the Intergrowth 21st equations in evaluating fetal biometric measurements in a rural area of Burkina Faso, and to measure the effect of changing a reference chart.

methodsData collected in Nazoanga, Burkina Faso, between October 2010 and October 2012, during a clinical trial evaluating the safety and efficacy of several antimalarial treatments in pregnant women were analyzed. We included singleton pregnancies at 16-36 weeks gestation as determined by ultrasound measurements of fetal bi-parietal diameter (BPD), head circumference (HC), abdominal circumference (AC) and femur length (FL). Expected mean and standard deviation at a given gestational age was computed using equations from Salomon references and using Intergrowth 21st standard. Then, z-scores were calculated and used subsequently to compare Salomon references with Intergrowth 21st standards.

resultsThe analysis included 276 singleton pregnancies. Agreement was poor except for HC: mean difference - 0.01, limits of agreement - 0.60 and 0.59. When AC was used as a surrogate of fetal size, switching from the reference of Salomon to the standards of Intergrowth 21st increased ten times the proportion of fetuses above the 90th percentile: 2.9 and 31.2%, respectively. Mean differences were larger in the third trimester than in the second trimester. However, agreement remained good for HC in both trimesters. Difference in the proportion of AC measurements above the 90th percentile using Salomon and Intergrowth 21st equations was greater in the second trimester (2.6 and 36.3%, respectively) than in the third trimester (3.5 and 19.8%, respectively). The greatest difference between the two charts was observed in the number of FL measurements classified as large in the second trimester (6.8 and 54.2%, using Salomon and Intergrowth 21st equations, respectively).

conclusionThe agreement between Intergrowth 21st and Salomon equations is poor apart from HC. This would imply different clinical decision regarding the management of the pregnancy.

Indexed as

Body Weights and MeasuresFetal DevelopmentAdultBurkina FasoCross-Sectional StudiesFetusGestational AgeHumansMathematical ConceptsReference ValuesRural PopulationUltrasonography, PrenatalYoung AdultBiometryBurkina FasoReferencesStandards

Identifiers

PMID32847549
PMCPMC7449020
OpenAlexW3080418732

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LicenceCC BY
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.