Pregnancy at or beyond age 40 years is associated with an increased risk of fetal death and other adverse outcomes

M. Camille Hoffman, Sarah Jeffers, Jena Carter, Lunthita Duthely, Amanda Cotter, Víctor Hugo González-Quintero

Research output: Contribution to journalArticle

Abstract

Objective: The objective of the study was to determine the frequency of fetal death in women 40 years of age or older (AMA). Study Design: Retrospective study of all singleton pregnancies delivered at our institution between the years 1989 and 2004 was performed. The primary outcome measure was the risk of fetal death at various gestational ages. We also investigated the frequency of maternal comorbidities, preterm delivery (PTD), and low and very low birth weights (LBW, VLBW). Results: Data were available for 126,402 singleton deliveries. AMA was an independent risk factor for fetal death at 28-31 weeks (adjusted odds ratio [AOR] 2.93, 95% confidence interval [CI] 1.76-4.92), 32-36 (AOR 1.73, 95% CI 1.05-2.83), 37-39 weeks (AOR 1.63, 95% CI 0.97-2.75), and 40-41 weeks (AOR 2.28, 95% CI 1.18-4.4). AMA was associated with increased rates of PTD, LBW, and VLBW. Conclusion: AMA is associated with an increased rate of fetal death and other adverse obstetrical outcomes. Antepartum fetal surveillance may be warranted in these women.

Original languageEnglish (US)
Pages (from-to)e11-e13
JournalAmerican journal of obstetrics and gynecology
Volume196
Issue number5
DOIs
StatePublished - May 1 2007
Externally publishedYes

Keywords

  • advanced maternal age
  • antepartum fetal surveillance
  • fetal death

ASJC Scopus subject areas

  • Obstetrics and Gynecology

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