dc.contributor.author
Dittkrist, Luisa
dc.contributor.author
Vetterlein, Julia
dc.contributor.author
Henrich, Wolfgang
dc.contributor.author
Ramsauer, Babett
dc.contributor.author
Schlembach, Dietmar
dc.contributor.author
Abou-Dakn, Michael
dc.contributor.author
Gembruch, Ulrich
dc.contributor.author
Schild, Ralf L.
dc.contributor.author
Duewal, Antonia
dc.contributor.author
Schaefer-Graf, Ute M.
dc.date.accessioned
2023-12-04T13:24:12Z
dc.date.available
2023-12-04T13:24:12Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/41702
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-41422
dc.description.abstract
Background: Sonography based estimate of fetal weight is a considerable issue for delivery planning. The study evaluated the influence of diabetes, obesity, excess weight gain, fetal and neonatal anthropometrics on accuracy of estimated fetal weight with respect to the extent of the percent error of estimated fetal weight to birth weight for different categories.
Methods: Multicenter retrospective analysis from 11,049 term deliveries and fetal ultrasound biometry performed within 14 days to delivery. Estimated fetal weight was calculated by Hadlock IV. Percent error from birth weight was determined for categories in 250 g increments between 2500 g and 4500 g. Estimated fetal weight accuracy was categorized as accurate <= 10% of birth weight, under- and overestimated by > +/- 10% - +/- 20% and > 20%.
Results: Diabetes was diagnosed in 12.5%, obesity in 12.6% and weight gain exceeding IOM recommendation in 49.1% of the women. The percentage of accurate estimated fetal weight was not significantly different in the presence of maternal diabetes (70.0% vs. 71.8%, p = 0.17), obesity (69.6% vs. 71.9%, p = 0.08) or excess weight gain (71.2% vs. 72%, p = 0.352) but of preexisting diabetes (61.1% vs. 71.7%; p = 0.007) that was associated with the highest macrosomia rate (26.9%). Mean percent error of estimated fetal weight from birth weight was 2.39% +/- 9.13%. The extent of percent error varied with birth weight with the lowest numbers for 3000 g-3249 g and increasing with the extent of birth weight variation: 5% +/- 11% overestimation in the lowest and 12% +/- 8% underestimation in the highest ranges.
Conclusion: Diabetes, obesity and excess weight gain are not necessarily confounders of estimated fetal weight accuracy. Percent error of estimated fetal weight is closely related to birth weight with clinically relevant over- and underestimation at both extremes. This work provides detailed data regarding the extent of percent error for different birth weight categories and may therefore improve delivery planning.
en
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
Estimated Fetal Weight
en
dc.subject
Percent Error
en
dc.subject
Birth Weight
en
dc.subject.ddc
600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit
dc.title
Percent error of ultrasound examination to estimate fetal weight at term in different categories of birth weight with focus on maternal diabetes and obesity
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
241
dcterms.bibliographicCitation.doi
10.1186/s12884-022-04519-z
dcterms.bibliographicCitation.journaltitle
BMC Pregnancy and Childbirth
dcterms.bibliographicCitation.number
1
dcterms.bibliographicCitation.originalpublishername
Springer Nature
dcterms.bibliographicCitation.volume
22
refubium.affiliation
Charité - Universitätsmedizin Berlin
refubium.funding
Springer Nature DEAL
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.bibliographicCitation.pmid
35321691
dcterms.isPartOf.eissn
1471-2393