{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T01:31:05Z","timestamp":1789608665123,"version":"build-2803163510"},"reference-count":51,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2017,10,3]],"date-time":"2017-10-03T00:00:00Z","timestamp":1506988800000},"content-version":"vor","delay-in-days":2,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Ultrasound in Obstet &amp;amp; Gyne"],"published-print":{"date-parts":[[2017,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To investigate the diagnostic performance of ultrasound in predicting birth\u2010weight (<jats:styled-content style=\"fixed-case\">BW<\/jats:styled-content>) discordance in twin pregnancy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Electronic databases PubMed, <jats:styled-content style=\"fixed-case\">EMBASE<\/jats:styled-content> and <jats:styled-content style=\"fixed-case\">CINAHL<\/jats:styled-content> were searched using combinations of <jats:styled-content style=\"fixed-case\">MeSH<\/jats:styled-content> terms \u2018birth weight\u2019, \u2018discordance\u2019, \u2018twins\u2019 and \u2018ultrasound\u2019. Summary estimates of sensitivity, specificity, positive and negative likelihood ratios and diagnostic odds ratios for the predictive accuracy of sonographically estimated fetal\u2010weight (<jats:styled-content style=\"fixed-case\">EFW<\/jats:styled-content>) discordance and abdominal\u2010circumference (<jats:styled-content style=\"fixed-case\">AC<\/jats:styled-content>) discordance in predicting <jats:styled-content style=\"fixed-case\">BW<\/jats:styled-content> discordance were computed using hierarchical summary receiver\u2013operating characteristics curves.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Twenty studies (including 5826 twin pregnancies) were included. <jats:styled-content style=\"fixed-case\">EFW<\/jats:styled-content> discordance\u2009\u2265\u200920% had a sensitivity of 65.4% and specificity of 90.8% in predicting <jats:styled-content style=\"fixed-case\">BW<\/jats:styled-content> discordance\u2009\u2265\u200920%. The predictive performance of ultrasound performed within 1 month, 2 weeks and 3 days before birth was 61.4%, 72.3% and 78.9%, respectively. <jats:styled-content style=\"fixed-case\">EFW<\/jats:styled-content> discordance\u2009\u2265\u200925% had a sensitivity of 57.7% and specificity of 95.2% in predicting <jats:styled-content style=\"fixed-case\">BW<\/jats:styled-content> discordance\u2009\u2265\u200925%. The sensitivity of <jats:styled-content style=\"fixed-case\">EFW<\/jats:styled-content> discordance\u2009\u2265\u200925% detected within 1 month, 2 weeks and 3 days before birth was 60.0%, 75.0% and 60.3%, respectively, while the corresponding values for specificity were 97.7%, 96.2% and 87.3%, respectively. In view of the different cut\u2010offs reported among studies, it was not possible to perform comprehensive data synthesis for each <jats:styled-content style=\"fixed-case\">AC<\/jats:styled-content> discordance cut\u2010off. The optimal diagnostic performance of AC discordance was for prediction of <jats:styled-content style=\"fixed-case\">BW<\/jats:styled-content> discordance\u2009\u2265\u200925%, with a sensitivity of 70.8% and specificity of 86.4%.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Ultrasound <jats:styled-content style=\"fixed-case\">EFW<\/jats:styled-content> discordance has an overall moderate accuracy in predicting <jats:styled-content style=\"fixed-case\">BW<\/jats:styled-content> discordance in twin pregnancy. Copyright \u00a9 2016 ISUOG. Published by John Wiley &amp; Sons Ltd.<\/jats:p><\/jats:sec>","DOI":"10.1002\/uog.17348","type":"journal-article","created":{"date-parts":[[2016,11,18]],"date-time":"2016-11-18T03:01:18Z","timestamp":1479438078000},"page":"442-450","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":38,"title":["Diagnostic accuracy of ultrasound in predicting birth\u2010weight discordance in twin pregnancy: systematic review and meta\u2010analysis"],"prefix":"10.1002","volume":"50","author":[{"given":"M.","family":"Leombroni","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynaecology, SS. Annunziata Hospital G. D'Annunzio University of Chieti\u2010Pescara, Chieti  Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.","family":"Liberati","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology, SS. Annunziata Hospital G. D'Annunzio University of Chieti\u2010Pescara, Chieti  Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"F.","family":"Fanfani","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology, SS. Annunziata Hospital G. D'Annunzio University of Chieti\u2010Pescara, Chieti  Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G.","family":"Pagani","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology, Fondazione Poliambulanza  Brescia Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"Familiari","sequence":"additional","affiliation":[{"name":"Department of Maternal\u2010Fetal Medicine Catholic University of the Sacred Heart  Rome Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D.","family":"Buca","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology, SS. Annunziata Hospital G. 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