Are women who have had a preterm singleton delivery at increased risk of preterm birth in a subsequent twin pregnancy?

Francesca L. Facco, Kate Nash, William A Grobman

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Our objective was to determine whether preterm birth of a singleton is associated with an increased risk of preterm birth of twins in a subsequent pregnancy. We identified all women who delivered a singleton followed by twins at Northwestern Memorial Hospital during a 10-year period. Using a cohort study design, we compared women with preterm singleton deliveries to women with term singleton deliveries with regard to their subsequent twin pregnancy outcomes. Two hundred ninety-three were identified who delivered a singleton followed by twins. Women who delivered a preterm singleton were significantly more likely to deliver subsequent preterm twins (73.9% versus 44.4%, odds ratio 3.5, 95% confidence interval 1.4 to 9.3). This significant difference persisted in multivariable analysis after controlling for ethnicity (adjusted odds ratio 3.3, 95% confidence interval 1.3 to 8.7). We concluded that preterm birth of a singleton is associated with an increased risk of preterm delivery in a subsequent twin gestation.

Original languageEnglish (US)
Pages (from-to)657-659
Number of pages3
JournalAmerican Journal of Perinatology
Volume25
Issue number10
DOIs
StatePublished - Nov 1 2008

Keywords

  • Predictors of prematurity
  • Preterm birth
  • Twin gestation

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Obstetrics and Gynecology

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