{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,15]],"date-time":"2026-06-15T04:47:45Z","timestamp":1781498865920,"version":"3.54.1"},"reference-count":30,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2013,5,16]],"date-time":"2013-05-16T00:00:00Z","timestamp":1368662400000},"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":[[2013,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To present a new gestational\u2010age\u2010specific percentile curve for symphysis\u2013fundus (<jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content>) height and to determine the effects of maternal and fetal covariates.<\/jats:p><\/jats:sec><jats:sec><jats:title>Design<\/jats:title><jats:p>A population\u2010based register study.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>Antenatal clinics in V\u00e4stra G\u00f6taland County, Sweden, between 2005 and 2010.<\/jats:p><\/jats:sec><jats:sec><jats:title>Population<\/jats:title><jats:p>A total of 42\u00a0018 women with ultrasound\u2010dated singleton pregnancies who delivered at Sahlgrenska University Hospital.<\/jats:p><\/jats:sec><jats:sec><jats:title>Main outcome measures<\/jats:title><jats:p>Measurement of <jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content> height.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A non\u2010linear regression of <jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content> height on day of pregnancy was used to construct a reference chart for the median and other percentiles of <jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content> height.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The new reference curve for <jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content> height showed almost linear growth until term. The median value was considerably larger at each gestational age compared with the curves for <jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content> height used in Norway and Denmark. Compared with the curve currently used in Sweden, higher median values were observed only at gestational ages &gt;34\u00a0weeks, accompanied by an upward shift in all percentiles. The only notably influential covariates were maternal pre\u2010pregnancy weight and height.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The new reference curve for <jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content> height shows a pattern that is different from the Scandinavian reference curves of older origin, reflecting changes in the pregnant population, as well as methodological differences. 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