Midpregnancy Cervical Length in Nulliparous Women and its Association with Postterm Delivery and Intrapartum Cesarean Delivery

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dc.contributor.authorVan Der Ven, A.
dc.contributor.authorVan Os, M.
dc.contributor.authorKleinrouweler, C.
dc.contributor.authorVerhoeven, C.
dc.contributor.authorDe Miranda, E.
dc.contributor.authorBossuyt, P.
dc.contributor.authorDe Groot, C.
dc.contributor.authorHaak, M.
dc.contributor.authorPajkrt, E.
dc.contributor.authorMol, B.
dc.contributor.authorKazemier, B.
dc.date.issued2016
dc.description.abstractObjective To evaluate the association between midpregnancy cervical length and postterm delivery and cesarean delivery during labor. Study Design In a multicenter cohort study, cervical length was measured in low-risk singleton pregnancies between 16 and 22 weeks of gestation. From this cohort, we identified nulliparous women who delivered beyond 34 weeks and calculated cervical length quartiles. We performed logistic regression to compare the risk of postterm delivery and intrapartum cesarean delivery to cervical length quartiles, using the lowest quartile as a reference. We adjusted for induction of labor, maternal age, ethnicity, cephalic position, preexisting hypertension, and gestational age at delivery. Results We studied 5,321 nulliparous women. Women with cervical length in the 3rd and 4th quartile were more likely to deliver at 42þ0 to 42þ6 weeks (adjusted odds ratio [aOR] 2.02, 95% confidence interval [CI] 1.07–3.79 and aOR 1.97, 95% CI 1.06–3.67, respectively). The frequency of intrapartum cesarean delivery increased with cervical length quartile from 9.4% in the 1st to 14.9% in the 4th quartile (p ¼ 0.01). This increase was only present in intrapartum cesarean delivery because of failure to progress and not because of fetal distress. Conclusion The longer the cervix atmidtrimester the higher the risk of both postterm delivery and intrapartum cesarean delivery.
dc.description.statementofresponsibilityA. J. van der Ven, M. A. van Os, C. E. Kleinrouweler, C. J. M. Verhoeven, E. de Miranda, P. M. Bossuyt, C. J. M. de Groot, M. C. Haak, E. Pajkrt, B. W. J. Mol, B. M. Kazemier
dc.identifier.citationAmerican Journal of Perinatology, 2016; 33(1):40-46
dc.identifier.doi10.1055/s-0035-1556067
dc.identifier.issn0735-1631
dc.identifier.issn1098-8785
dc.identifier.orcidMol, B. [0000-0001-6887-0262] [0000-0001-8337-550X]
dc.identifier.urihttp://hdl.handle.net/2440/103219
dc.language.isoen
dc.publisherThieme Medical Publishers
dc.rights© 2016 by Thieme Medical Publishers, Inc.,
dc.source.urihttps://doi.org/10.1055/s-0035-1556067
dc.subjectcervical length; postterm delivery; cesarean section; cohort study
dc.titleMidpregnancy Cervical Length in Nulliparous Women and its Association with Postterm Delivery and Intrapartum Cesarean Delivery
dc.typeJournal article
pubs.publication-statusPublished

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