Cited by 334Maternal and Perinatal Health InterventionsGlobal Maternal and Child HealthMaternal and fetal healthcare

Maternal age and the risk of stillbirth throughout pregnancy in the United States

Reddy, Uma M., Ko, Chia-Wen, Willinger, Marian·2006·American Journal of Obstetrics and Gynecology

Abstract

Objective The objective of the study was to examine the relationship of maternal age with stillbirth risk throughout gestation. Study design A total of 5,458,735 singleton gestations without reported congenital anomalies from the 2001 to 2002 National Center for Health Statistics perinatal mortality and natality files were analyzed. Hazard rates (risk) of stillbirth (fetal death 20 weeks or longer) were calculated for each week of gestation. Results The risk of stillbirth at 37 to 41 weeks for women 35 to 39 years old was 1 in 382 ongoing pregnancies and for women 40 years old or older, 1 in 267 ongoing pregnancies. Compared with women younger than 35 years old, the relative risk of stillbirth was 1.32 (95% confidence interval 1.22, 1.43) for women 35 to 39 years old and 1.88 (95% confidence interval 1.64, 2.16) for women 40 years old or older at 37 to 41 weeks. This effect of maternal age persisted despite accounting for medical disease, parity, and race/ethnicity. Conclusion Women who are of advanced maternal age are at higher risk of stillbirth throughout gestation; the peak risk period is 37 to 41 weeks.

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Crossref · 10.1016/j.ajog.2006.06.019

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  • Advanced maternal age is linked to an escalation in complications during childbirth, such as preterm deliveries and stillbirths.

    “These concerns are rooted in the established link between advanced maternal age and an escalation in complications during childbirth, such as preterm deliveries and stillbirths [6–8].”

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Authors
Reddy, U. M., Ko, C.-W., & Willinger, M.
Affiliations
National Institutes of Health (US)
Venue
American Journal of Obstetrics and Gynecology
Publisher
Elsevier BV
Published
2006-09
Volume
195
Issue
3
Pages
764-770
ISSN
0002-9378 (ISSN-L)
OpenAlex
W1974462903
Cited by
334
References
23
Citations by year
2026: 10 · 2025: 9 · 2024: 11 · 2023: 17 · 2022: 15 · 2021: 19 · 2020: 19 · 2019: 11 · 2018: 19 · 2017: 28 · 2016: 15 · 2015: 13 · 2014: 16 · 2013: 21 · 2012: 20
FWCI
19.58
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Obstetrics and Gynecology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Obstetrics and Gynecology › Maternal and Perinatal Health Interventions
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Global Maternal and Child Health
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Maternal and fetal healthcare
Keywords
maternal age, advanced maternal age, stillbirth, perinatal mortality, fetal death, singleton pregnancy, gestational age, risk factors, parity, race and ethnicity
MeSH terms
Adult, Black or African American, Female, Hispanic or Latino, Humans, Maternal Age, Parity, Pregnancy, Pregnancy Complications, Risk Factors, United States, Stillbirth

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