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Slow fetal growth between first and early second trimester ultrasound scans and risk of small for gestational age (SGA) birth.
Karolinska Univ Hosp & Inst, Dept Med Solna, Clin Epidemiol Unit, Stockholm, Sweden.; Karolinska Univ Hosp Solna, Clin Epidemiol Unit, T2, Stockholm, Sweden..
Karolinska Univ Hosp & Inst, Dept Med Solna, Clin Epidemiol Unit, Stockholm, Sweden.; Univ Calif Berkeley, Sch Publ Hlth, Berkeley, CA 94720 USA..
Karolinska Univ Hosp & Inst, Dept Med Solna, Clin Epidemiol Unit, Stockholm, Sweden.
Karolinska Univ Hosp & Inst, Dept Med Solna, Clin Epidemiol Unit, Stockholm, Sweden.
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2017 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 12, no 9, article id e0184853Article in journal (Refereed) Published
Abstract [en]

OBJECTIVES: To investigate the association between fetal growth between first and early second trimester ultrasound scan and the risk of severe small for gestational age (SGA) birth.

METHODS: This cohort study included 69 550 singleton pregnancies with first trimester dating and an early second trimester growth scan in Stockholm and Gotland Counties, Sweden between 2008 and 2014. Exposure was difference in biparietal diameter growth between observed and expected at the second trimester scan, calculated by z-scores. Risk of birth of a severe SGA infant (birth weight for gestational age by fetal sex less than the 3rd centile) was calculated using multivariable logistic regression analysis and presented as adjusted odds ratio (aOR).

RESULTS: Parietal growth less than 2.5 percentile between first and second trimester ultrasound examination was associated with elevated risk of being born severe SGA. (aOR 1.67; 95% Confidence Interval 1.28-2.18). The risks of preterm severe SGA (birth before 37 weeks) and term severe SGA (birth 37 weeks or later) were at similar levels, and risk of severe SGA were also elevated in the absence of preeclampsia, hypertensive diseases or gestational diabetes.

CONCLUSIONS: Fetuses with slow growth of biparietal diameter at ultrasound examination in early second trimester exhibit increased risk of being born SGA independent of gestational age at birth and presence of maternal hypertensive diseases or diabetes mellitus.

Place, publisher, year, edition, pages
2017. Vol. 12, no 9, article id e0184853
National Category
Medical and Health Sciences
Research subject
Obstetrics and Gynaecology
Identifiers
URN: urn:nbn:se:uu:diva-336793DOI: 10.1371/journal.pone.0184853ISI: 000411339900051PubMedID: 28934257OAI: oai:DiVA.org:uu-336793DiVA, id: diva2:1167054
Funder
Swedish Research Council, 2013-2429, 2014-3561
Available from: 2017-12-17 Created: 2017-12-17 Last updated: 2017-12-20Bibliographically approved

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