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  • Title: Association between colonization with group B streptococci during pregnancy and preterm delivery among Danish women.
    Author: Feikin DR, Thorsen P, Zywicki S, Arpi M, Westergaard JG, Schuchat A.
    Journal: Am J Obstet Gynecol; 2001 Feb; 184(3):427-33. PubMed ID: 11228498.
    Abstract:
    OBJECTIVE: We studied the relationship between group B streptococcal colonization and preterm delivery. STUDY DESIGN: In this prospective study at a single hospital in Odense, Denmark, cervicovaginal cultures were obtained at < or = 24 weeks' gestation from all the women, at delivery from women with preterm deliveries, and from a random sample of women delivering at term. RESULTS: In 2846 singleton births, there was no significant association between group B streptococcal colonization at <or = 24 weeks' gestation and preterm birth. After adjustment for the risk factors for preterm delivery, more women with preterm delivery (12/84, 14%) were colonized at delivery with group B streptococci than women with term deliveries (22/300, 7%; adjusted odds ratio, 3.0; 95% confidence interval, 1.4-6.8). Group B streptococcal colonization at < or = 24 weeks' gestation and at delivery was significantly less likely to occur in the presence of normal vaginal flora. CONCLUSION: Group B streptococcal colonization at delivery, but not at < or = 24 weeks' gestation, was associated with preterm delivery.
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