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Article: Primiparity: An 'intermediate' risk group for spontaneous and medically indicated preterm birth
- Article from:
- Journal of Maternal - Fetal & Neonatal Medicine
- Article date:
- August 1, 2007
- Author:
CopyrightCopyright Taylor & Francis Ltd. Aug 2007. Provided by ProQuest LLC. (Hide copyright information)
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Abstract
Objective. Most women in their first pregnancy are at 'unknown' risk for preterm birth. We hypothesized that such women may be at an increased risk for preterm birth in comparison to those with a prior term birth.
Methods. We used Missouri's maternally-linked data (1989-97), comprised of women delivering their first singleton live birth (N = 259 431) and women delivering their first two consecutive singleton live births (N = 154 810). We compared preterm birth (<37 weeks) rates among women with a previous term birth, women with no reproductive history (primiparous women), and in those with a previous preterm birth. Risks of spontaneous and medically indicated preterm birth were ...