Increased Accuracy of Fetal Weight Estimation with a Gender-Specific Weight Formula
Objective: To test whether Schild’s sex-specific formula for estimating fetal weight is more accurate than commonly used regression formulae. Methods: The gender-specific formula and 10 widely used equations were evaluated in a group of 989 pregnancies. Each fetus underwent ultrasound examination wi...
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| Veröffentlicht in: | Fetal diagnosis and therapy 2008-01, Vol.24 (4), p.321-326 |
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| container_title | Fetal diagnosis and therapy |
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| creator | Siemer, Jörn Wolf, Tanja Hart, Nicola Schrauder, Michael Meurer, Britta Goecker, Tamme Beckmann, Matthias W. Schild, Ralf L. |
| description | Objective: To test whether Schild’s sex-specific formula for estimating fetal weight is more accurate than commonly used regression formulae. Methods: The gender-specific formula and 10 widely used equations were evaluated in a group of 989 pregnancies. Each fetus underwent ultrasound examination with complete biometric parameters within 7 days before delivery. Results: Over the whole weight range and in the subgroup of newborns with a birth weight between 2,500 and 3,999 g, the sex-specific weight formula from Schild demonstrated the best level of accuracy. For infants with a birth weight of less than 2,500 g as well as for macrosomic newborns, the gender-specific formula did not improve fetal weight estimation. Conclusion: In pregnancies where fetal gender is known, Schild’s regression formula should be used when fetal weight lies within the range of 2,500–3,999 g. |
| doi_str_mv | 10.1159/000159777 |
| format | Article |
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Methods: The gender-specific formula and 10 widely used equations were evaluated in a group of 989 pregnancies. Each fetus underwent ultrasound examination with complete biometric parameters within 7 days before delivery. Results: Over the whole weight range and in the subgroup of newborns with a birth weight between 2,500 and 3,999 g, the sex-specific weight formula from Schild demonstrated the best level of accuracy. For infants with a birth weight of less than 2,500 g as well as for macrosomic newborns, the gender-specific formula did not improve fetal weight estimation. Conclusion: In pregnancies where fetal gender is known, Schild’s regression formula should be used when fetal weight lies within the range of 2,500–3,999 g.</description><identifier>ISSN: 1015-3837</identifier><identifier>EISSN: 1421-9964</identifier><identifier>DOI: 10.1159/000159777</identifier><identifier>PMID: 18836268</identifier><language>eng</language><publisher>Basel, Switzerland: Karger</publisher><subject>Adolescent ; Adult ; Biological and medical sciences ; Biometry - methods ; Birth Weight ; Delivery. Postpartum. Lactation ; Female ; Fetal Weight ; General aspects ; Gestational Age ; Gynecology. Andrology. Obstetrics ; Humans ; Male ; Medical sciences ; Middle Aged ; Models, Biological ; Pregnancy ; Prospective Studies ; Regression Analysis ; Reproducibility of Results ; Sex Factors ; Ultrasonography, Prenatal - methods ; Ultrasonography, Prenatal - standards ; Young Adult</subject><ispartof>Fetal diagnosis and therapy, 2008-01, Vol.24 (4), p.321-326</ispartof><rights>2008 S. Karger AG, Basel</rights><rights>2009 INIST-CNRS</rights><rights>Copyright 2008 S. Karger AG, Basel.</rights><rights>Copyright (c) 2009 S. 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Methods: The gender-specific formula and 10 widely used equations were evaluated in a group of 989 pregnancies. Each fetus underwent ultrasound examination with complete biometric parameters within 7 days before delivery. Results: Over the whole weight range and in the subgroup of newborns with a birth weight between 2,500 and 3,999 g, the sex-specific weight formula from Schild demonstrated the best level of accuracy. For infants with a birth weight of less than 2,500 g as well as for macrosomic newborns, the gender-specific formula did not improve fetal weight estimation. Conclusion: In pregnancies where fetal gender is known, Schild’s regression formula should be used when fetal weight lies within the range of 2,500–3,999 g.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Biological and medical sciences</subject><subject>Biometry - methods</subject><subject>Birth Weight</subject><subject>Delivery. Postpartum. Lactation</subject><subject>Female</subject><subject>Fetal Weight</subject><subject>General aspects</subject><subject>Gestational Age</subject><subject>Gynecology. Andrology. 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Postpartum. Lactation</topic><topic>Female</topic><topic>Fetal Weight</topic><topic>General aspects</topic><topic>Gestational Age</topic><topic>Gynecology. Andrology. Obstetrics</topic><topic>Humans</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>Models, Biological</topic><topic>Pregnancy</topic><topic>Prospective Studies</topic><topic>Regression Analysis</topic><topic>Reproducibility of Results</topic><topic>Sex Factors</topic><topic>Ultrasonography, Prenatal - methods</topic><topic>Ultrasonography, Prenatal - standards</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Siemer, Jörn</creatorcontrib><creatorcontrib>Wolf, Tanja</creatorcontrib><creatorcontrib>Hart, Nicola</creatorcontrib><creatorcontrib>Schrauder, Michael</creatorcontrib><creatorcontrib>Meurer, Britta</creatorcontrib><creatorcontrib>Goecker, Tamme</creatorcontrib><creatorcontrib>Beckmann, Matthias W.</creatorcontrib><creatorcontrib>Schild, Ralf L.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Neurosciences Abstracts</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Research Library</collection><collection>Research Library (Corporate)</collection><collection>ProQuest Central (New)</collection><collection>ProQuest One Academic (New)</collection><collection>ProQuest Health & Medical Research Collection</collection><collection>ProQuest One Academic Middle East (New)</collection><collection>ProQuest One Health & Nursing</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><jtitle>Fetal diagnosis and therapy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Siemer, Jörn</au><au>Wolf, Tanja</au><au>Hart, Nicola</au><au>Schrauder, Michael</au><au>Meurer, Britta</au><au>Goecker, Tamme</au><au>Beckmann, Matthias W.</au><au>Schild, Ralf L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Increased Accuracy of Fetal Weight Estimation with a Gender-Specific Weight Formula</atitle><jtitle>Fetal diagnosis and therapy</jtitle><addtitle>Fetal Diagn Ther</addtitle><date>2008-01-01</date><risdate>2008</risdate><volume>24</volume><issue>4</issue><spage>321</spage><epage>326</epage><pages>321-326</pages><issn>1015-3837</issn><eissn>1421-9964</eissn><abstract>Objective: To test whether Schild’s sex-specific formula for estimating fetal weight is more accurate than commonly used regression formulae. Methods: The gender-specific formula and 10 widely used equations were evaluated in a group of 989 pregnancies. Each fetus underwent ultrasound examination with complete biometric parameters within 7 days before delivery. Results: Over the whole weight range and in the subgroup of newborns with a birth weight between 2,500 and 3,999 g, the sex-specific weight formula from Schild demonstrated the best level of accuracy. For infants with a birth weight of less than 2,500 g as well as for macrosomic newborns, the gender-specific formula did not improve fetal weight estimation. Conclusion: In pregnancies where fetal gender is known, Schild’s regression formula should be used when fetal weight lies within the range of 2,500–3,999 g.</abstract><cop>Basel, Switzerland</cop><pub>Karger</pub><pmid>18836268</pmid><doi>10.1159/000159777</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Fetal diagnosis and therapy, 2008-01, Vol.24 (4), p.321-326 |
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| source | Karger Journal Archive Collection; Karger Journals; MEDLINE; Alma/SFX Local Collection |
| subjects | Adolescent Adult Biological and medical sciences Biometry - methods Birth Weight Delivery. Postpartum. Lactation Female Fetal Weight General aspects Gestational Age Gynecology. Andrology. Obstetrics Humans Male Medical sciences Middle Aged Models, Biological Pregnancy Prospective Studies Regression Analysis Reproducibility of Results Sex Factors Ultrasonography, Prenatal - methods Ultrasonography, Prenatal - standards Young Adult |
| title | Increased Accuracy of Fetal Weight Estimation with a Gender-Specific Weight Formula |
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