The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.
Maternal-fetal conditions necessitating a medical intervention resulting in preterm birth
Abstract
Objective The objective of the study was to evaluate the extent to which maternal and fetal conditions necessitate medically indicated preterm birth.Study design A population-based, retrospective, cohort study of women who delivered a singleton live birth at 20 weeks or longer in Missouri, 1989 to 1997 was performed (n = 684,711). Maternal-fetal conditions that necessitated iatrogenic preterm birth included preeclampsia, small-for-gestational-age birth, fetal distress, placental abruption, placenta previa, unexplained vaginal bleeding, pregestational and gestational diabetes, renal disease, Rh sensitization, and congenital malformations. We examined the association between each of the aforementioned conditions and risk of medically indicated preterm birth at less than 35 weeks. Medically indicated preterm birth was defined as a labor induction or a prelabor cesarean in the absence of premature rupture of membranes at preterm gestations. Adjusted relative risk with 95% confidence interval for preterm birth was derived from multivariable logistic regression models, and population attributable fractions were calculated.Results The preterm birth rate (less than 35 weeks) was 4.6% (n = 31,238), with 23.5% (n = 7,347) of such births being medically indicated. Preeclampsia, fetal distress, small-for-gestational-age, and placental abruption were the most common indications for a medical intervention resulting in preterm birth, with at least 1 of these conditions present in 53.2% of medically indicated preterm births and in 17.7% of term births (relative risk 4.9, 95% confidence interval 4.7, 5.2).Conclusion Preeclampsia, fetal distress, small-for-gestational-age, and placental abruption, conditions that are associated with ischemic placental disease, are implicated in well over half of all medically indicated preterm births. Although the etiology of preterm birth is heterogeneous, it is reasonable that ischemic placental disease may serve as an important pathway to preterm birth.
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“These chronic changes predispose to abruption as well as other placentally mediated pathologies, including fetal growth restriction (FGR) and preeclampsia (12), often occurring weeks or months before the manifestations of these complications become clinically evident (8).”
From Placental abruption at near-term and term gestations: Pathophysiology, epidemiology, diagnosis, and management (2023) · cites this paper as [12]
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Epidemiology of preterm birth and its clinical subtypes
Ananth, C. V., Ananth, C. V., & Vintzileos, A. M. (2006) · The Journal of Maternal-Fetal & Neonatal Medicine · doi:10.1080/14767050600965882 · Cited by 461
Self-citationNew J apanese neonatal anthropometric charts for gestational age at birth
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Metadata
- Authors
- Ananth, C. V., & Vintzileos, A. M.
- Affiliations
- University of Medicine and Dentistry of New Jersey (US)
- Corresponding author
- Ananth, Cande V.
- Venue
- American Journal of Obstetrics and Gynecology
- Publisher
- Elsevier BV
- Published
- 2006-12
- Volume
- 195
- Issue
- 6
- Pages
- 1557-1563
- ISSN
- 0002-9378 (ISSN-L)
- OpenAlex
- W2014584719
- Cited by
- 330
- References
- 31
- Citations by year
- 2026: 17 · 2025: 13 · 2024: 12 · 2023: 15 · 2022: 13 · 2021: 22 · 2020: 18 · 2019: 17 · 2018: 25 · 2017: 23 · 2016: 15 · 2015: 22 · 2014: 25 · 2013: 10 · 2012: 18
- FWCI
- 9.27
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- American Journal of Obstetrics and Gynecology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD038902)
- Topics
- Health Sciences › Medicine › Obstetrics and Gynecology › Preterm Birth and Chorioamnionitis
- Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Infant Development and Preterm Care
- Health Sciences › Medicine › Obstetrics and Gynecology › Maternal and Perinatal Health Interventions
- Keywords
- medically indicated preterm birth, preeclampsia, fetal distress, small for gestational age, placental abruption, ischemic placental disease, labor induction, preterm birth risk factors, congenital malformations, Rh isoimmunization, gestational diabetes mellitus, placenta previa
- MeSH terms
- Abruptio Placentae, Adult, Cesarean Section, Female, Fetal Diseases, Fetal Distress, Humans, Infant, Newborn, Infant, Small for Gestational Age, Ischemia, Labor, Induced, Placenta, Pre-Eclampsia, Pregnancy, Pregnancy Complications, Retrospective Studies, Risk, Cohort Studies, Incidence, Premature Birth
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