{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T21:17:40Z","timestamp":1791580660722,"version":"4.3.4"},"reference-count":21,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2019,6,6]],"date-time":"2019-06-06T00:00:00Z","timestamp":1559779200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[2019,11]]},"abstract":"Abstract<\/jats:title>Introduction<\/jats:title>Small\u2010for\u2010gestational\u2010age (SGA<\/jats:styled-content>) confers a higher perinatal risk of adverse outcomes. Birthweight cannot be accurately measured until delivery, therefore accurate estimated fetal weight (EFW<\/jats:styled-content>) based on ultrasonography is important in identifying this high\u2010risk population. We aimed to establish the sensitivity of detecting SGA<\/jats:styled-content> infants antenatally in a unit with a selective third\u2010trimester ultrasound policy and to investigate the association between EFW<\/jats:styled-content> and birthweight in these babies.<\/jats:p><\/jats:sec>Material and methods<\/jats:title>A retrospective cohort study was conducted on non\u2010anomalous singleton pregnancies delivered after 36\u00a0weeks of gestation where SGA<\/jats:styled-content> (<10th percentile) was diagnosed at delivery. The EFW<\/jats:styled-content> at the time of the third\u2010trimester ultrasound scan was recorded using standard Hadlock formulae.<\/jats:p><\/jats:sec>Results<\/jats:title>In 2017, there were 8392 non\u2010anomalous singleton pregnancies live born after 36\u00a0weeks, excluding late bookers. 797 were live\u2010born SGA<\/jats:styled-content> <10th percentile for birthweight and 464 <5th percentile, who met our inclusion criteria. The antenatal detection rate of SGA<\/jats:styled-content> was 19.6% for babies with birthweight <10th percentile and 24.1% <5th percentile. There was a significant correlation between the EFW<\/jats:styled-content> and birthweight of fetuses undergoing ultrasound assessment within 2\u00a0weeks of delivery (P\u00a0<\/jats:italic><\u00a0<\/jats:italic>.001, r<\/jats:italic>\u00a0=\u00a00.73 (Pearson correlation). For these cases, EFW<\/jats:styled-content> was greater than the birthweight in 65% of cases. After adjusting all EFW<\/jats:styled-content>s using the discrepancy between EFW<\/jats:styled-content> and actual birthweight for those babies born within 48\u00a0hours of the scan, the mean difference between the birthweight and adjusted EFW<\/jats:styled-content> 7\u00a0days before delivery was 111\u00a0g (95% CI<\/jats:styled-content> 87\u2010136\u00a0g) and at 14\u00a0days was 200\u00a0g (95% CI<\/jats:styled-content> 153\u2010248\u00a0g). Despite adjusting the EFW<\/jats:styled-content>, 61\/213 cases (28.6%) apparently lost weight between the ultrasound scan and delivery.<\/jats:p><\/jats:sec>Conclusions<\/jats:title>Small\u2010for\u2010gestational\u2010age infants with a birthweight <10th percentile are poorly identified antenatally with little improvement for those <5th percentile. In SGA<\/jats:styled-content> babies, ultrasound EFW<\/jats:styled-content> overestimated birthweight. Discrepancies between birthweight and EFW<\/jats:styled-content> are not explicable only by the limitations of third\u2010trimester sonography, a reduction in fetal weight close to delivery in a proportion of liveborn SGA<\/jats:styled-content> babies is plausible.<\/jats:p><\/jats:sec>","DOI":"10.1111\/aogs.13645","type":"journal-article","created":{"date-parts":[[2019,5,15]],"date-time":"2019-05-15T14:08:18Z","timestamp":1557929298000},"page":"1435-1441","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Comparing the relation between ultrasound\u2010estimated fetal weight and birthweight in cohort of small\u2010for\u2010gestational\u2010age fetuses"],"prefix":"10.1111","volume":"98","author":[{"given":"Katie","family":"Stephens","sequence":"first","affiliation":[{"name":"Queen Charlotte's and Chelsea Hospital London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maya","family":"Al\u2010Memar","sequence":"additional","affiliation":[{"name":"Queen Charlotte's and Chelsea Hospital London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suzanne","family":"Beattie\u2010Jones","sequence":"additional","affiliation":[{"name":"Queen Charlotte's and Chelsea Hospital London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mandish","family":"Dhanjal","sequence":"additional","affiliation":[{"name":"Queen Charlotte's and Chelsea Hospital London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephanie","family":"Mappouridou","sequence":"additional","affiliation":[{"name":"Queen Charlotte's and Chelsea Hospital London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elizabeth","family":"Thorne","sequence":"additional","affiliation":[{"name":"Queen Charlotte's and Chelsea Hospital London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2104-5561","authenticated-orcid":false,"given":"Christoph","family":"Lees","sequence":"additional","affiliation":[{"name":"Queen Charlotte's and Chelsea Hospital London UK"},{"name":"Department of Obstetrics & Gynecology KU Leuven Leuven Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2019,6,6]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(15)00131-2"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1038\/jp.2016.118"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1479-828X.2007.00742.x"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.1806"},{"key":"e_1_2_10_6_1","first-page":"CD001451","article-title":"Routine ultrasound in late pregnancy (after 24\u00a0weeks\u2019 gestation)","volume":"6","author":"Bricker 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