Optimal time of delivery to reduce the risk of infant mortality in small and normally grown fetuses: A national cohort study in Korea.

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  • Additional Information
    • Source:
      Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS ONE Subsets: MEDLINE
    • Publication Information:
      Original Publication: San Francisco, CA : Public Library of Science
    • Subject Terms:
    • Abstract:
      Purpose: To examine the competing risks of stillbirth versus infant death and to evaluate the optimal time of delivery in the population of small for gestational age (SGA) and non-SGA late preterm and term fetuses.
      Methods: This was a retrospective national cohort study of all singleton births between 34 0/7 and 42 6/7 weeks of gestation using the Korean vital statistics (n = 2,106,159). We compared the risk of infant mortality with a composite of fetal-infant mortality risk that would occur after expectant management for one additional week and evaluated the optimal time of delivery, in SGA and non-SGA pregnancies.
      Results: In the total population, the risk of expectant management became significantly higher than the risk of delivery, at 39 weeks and beyond, similar with non-SGA group. In the SGA group, the risk of stillbirth was significantly greater at all GAs than for non-SGA pregnancies, and the risk of infant death was significantly increased until 38 weeks (25.8 per 10,000 live births, 95% CI 20.11-32.47), and the risk of stillbirth was significantly increased at 41 weeks (11.65 per 10,000 ongoing pregnancies, 95% CI 6.95-18.09), compared to 39 weeks (12 per 10,000 live births, 95% CI 8.98-15.64 and 5.12 per 10,000 ongoing pregnancies, 95% CI 3.84-6.66, respectively).
      Conclusion: In Korean women, delivery between 39 and 41 weeks minimizes fetal/infant mortality, in non-SGA pregnancies. In uncomplicated SGA pregnancies, delivery between 39 and 40 weeks can be considered to decrease risk of infant death and stillbirths.
    • Publication Date:
      Date Created: 20181215 Date Completed: 20190521 Latest Revision: 20190521
    • Publication Date:
      20190522
    • Accession Number:
      10.1371/journal.pone.0209308
    • Accession Number:
      30550584
  • Citations
    • ABNT:
      KO, H. S. et al. Optimal time of delivery to reduce the risk of infant mortality in small and normally grown fetuses: A national cohort study in Korea. Plos One, [s. l.], v. 13, n. 12, p. e0209308, 2018. Disponível em: . Acesso em: 18 out. 2019.
    • AMA:
      Ko HS, Wie JH, Choi SK, Park IY, Park Y-G, Shin JC. Optimal time of delivery to reduce the risk of infant mortality in small and normally grown fetuses: A national cohort study in Korea. Plos One. 2018;13(12):e0209308. doi:10.1371/journal.pone.0209308.
    • APA:
      Ko, H. S., Wie, J. H., Choi, S. K., Park, I. Y., Park, Y.-G., & Shin, J. C. (2018). Optimal time of delivery to reduce the risk of infant mortality in small and normally grown fetuses: A national cohort study in Korea. Plos One, 13(12), e0209308. https://doi.org/10.1371/journal.pone.0209308
    • Chicago/Turabian: Author-Date:
      Ko, Hyun Sun, Jeong Ha Wie, Sae Kyung Choi, In Yang Park, Yong-Gyu Park, and Jong Chul Shin. 2018. “Optimal Time of Delivery to Reduce the Risk of Infant Mortality in Small and Normally Grown Fetuses: A National Cohort Study in Korea.” Plos One 13 (12): e0209308. doi:10.1371/journal.pone.0209308.
    • Harvard:
      Ko, H. S. et al. (2018) ‘Optimal time of delivery to reduce the risk of infant mortality in small and normally grown fetuses: A national cohort study in Korea’, Plos One, 13(12), p. e0209308. doi: 10.1371/journal.pone.0209308.
    • Harvard: Australian:
      Ko, HS, Wie, JH, Choi, SK, Park, IY, Park, Y-G & Shin, JC 2018, ‘Optimal time of delivery to reduce the risk of infant mortality in small and normally grown fetuses: A national cohort study in Korea’, Plos One, vol. 13, no. 12, p. e0209308, viewed 18 October 2019, .
    • MLA:
      Ko, Hyun Sun, et al. “Optimal Time of Delivery to Reduce the Risk of Infant Mortality in Small and Normally Grown Fetuses: A National Cohort Study in Korea.” Plos One, vol. 13, no. 12, Dec. 2018, p. e0209308. EBSCOhost, doi:10.1371/journal.pone.0209308.
    • Chicago/Turabian: Humanities:
      Ko, Hyun Sun, Jeong Ha Wie, Sae Kyung Choi, In Yang Park, Yong-Gyu Park, and Jong Chul Shin. “Optimal Time of Delivery to Reduce the Risk of Infant Mortality in Small and Normally Grown Fetuses: A National Cohort Study in Korea.” Plos One 13, no. 12 (December 14, 2018): e0209308. doi:10.1371/journal.pone.0209308.
    • Vancouver/ICMJE:
      Ko HS, Wie JH, Choi SK, Park IY, Park Y-G, Shin JC. Optimal time of delivery to reduce the risk of infant mortality in small and normally grown fetuses: A national cohort study in Korea. Plos One [Internet]. 2018 Dec 14 [cited 2019 Oct 18];13(12):e0209308. Available from: http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=mdc&AN=30550584&authtype=sso&custid=s5834912