Research Article

Pregnancy Outcomes in Advanced Maternal age: a Single Reference Institution Experience

Volume: 17 Number: April, May, June 2026 June 12, 2026

Pregnancy Outcomes in Advanced Maternal age: a Single Reference Institution Experience

Abstract

Objective: Advanced maternal age was shown to be associated with several adverse maternal and perinatal outcomes. The aim of this study to compare pregnancy complications and the outcome between pregnant women with and without advanced age. Methods: This retrospective cohort study included a total of 2,889 women and was designed to compare pregnancy outcomes between women aged <40 years and those aged ≥40 years. Maternal and neonatal complications were systematically evaluated, and both crude and adjusted risk estimates were calculated. Multivariate analyses were performed to account for potential confounding factors, allowing for a more accurate assessment of the independent effect of advanced maternal age on pregnancy outcomes. Results: Advanced age was shown to be associated with higher risk for neonatal intensive care unit admission [OR:3.1 (95% CI: 2.2-4.2), p<0.05], IUGR [OR:1.6 (95% CI: 1.1-2.5), p<0.05], preterm delivery [OR:8.9 (95% CI: 5.7-14.2), p<0.001] and preeclampsia [OR:1.8 (95% CI: 1.2-2.6), p<0.05] after adjustment for number of prenatal visits, pre pregnancy hemoglobin level, number of previous deliveries and gestational age at delivery. Conclusion: Advanced maternal age is associated with a range of adverse pregnancy outcomes. These risks are independent of number of prenatal visits, pre-pregnancy hemoglobin level, number of previous deliveries and gestational age delivery.

Keywords

Supporting Institution

No supporting institution.

Project Number

none

Ethical Statement

This study was approved by the ethics committee of Zeynep Kamil Research and Training Hospital (date: 30.12.2020, decision no: 195). The study was conducted in accordance with the Declaration of Helsinki.

Thanks

none

References

  1. 1. American College of Obstetricians and Gynecologists; Gantt A, Metz TD, et al. Pregnancy at age 35 years or older: ACOG Obstetric Care Consensus No. 11. Obstet Gynecol. 2022;140(2):348–66. doi:10.1097/ AOG.0000000000004873.
  2. 2. Heazell AEP, Newman L, Lean SC, Jones RL. Pregnancy outcome in mothers over the age of 35. Curr Opin Obstet Gynecol. 2018;30(6):337–43. doi:10.1097/GCO.0000000000000494.
  3. 3. Saccone G, Gragnano E, Ilardi B, et al. Maternal and perinatal complications according to maternal age: a systematic review and meta-analysis. Int J Gynaecol Obstet. 2022;159(1):43–55. doi:10.1002/ijgo.14100.
  4. 4. Rademaker D, Hukkelhoven CWPM, van Pampus MG. Adverse maternal and perinatal pregnancy outcomes related to very advanced maternal age in primigravida and multigravida in the Netherlands: a population-based cohort. Acta Obstet Gynecol Scand. 2021;100(5):941–8. doi:10.1111/aogs.14064.
  5. 5. Sparić R, Stojković M, Plešinac J, et al. Advanced maternal age (AMA) and pregnancy: a feasible but problematic event. Arch Gynecol Obstet. 2024;310(3):1365–76. doi:10.1007/s00404-024-07678-w.
  6. 6. Frick AP. Advanced maternal age and adverse pregnancy outcomes. Best Pract Res Clin Obstet Gynaecol. 2021;70:92–100. doi:10.1016/j. bpobgyn.2020.07.005.
  7. 7. Correa-de-Araujo R, Yoon SSS. Clinical outcomes in high-risk pregnancies due to advanced maternal age. J Womens Health (Larchmt). 2021;30(2):160–7. doi:10.1089/jwh.2020.8860.
  8. 8. Lean SC, Derricott H, Jones RL, Heazell AEP. Advanced maternal age and adverse pregnancy outcomes: a systematic review and meta analysis. PLoS One. 2017;12(10):e0186287. doi:10.1371/journal. pone.0186287.

Details

Primary Language

English

Subjects

Obstetrics and Gynaecology

Journal Section

Research Article

Publication Date

June 12, 2026

Submission Date

February 17, 2026

Acceptance Date

May 10, 2026

Published in Issue

Year 2026 Volume: 17 Number: April, May, June 2026

APA
Darıcı Kurt, E., Karakuş, R., Kılıçcı, Ç., Cimşit Kemahlı, M. N., Özaltın, S., Karabudak, C. B., & Bostancı Ergen, E. (2026). Pregnancy Outcomes in Advanced Maternal age: a Single Reference Institution Experience. Acıbadem Üniversitesi Sağlık Bilimleri Dergisi, 17(April, May, June 2026). https://doi.org/10.31067/acusaglik.1891194
AMA
1.Darıcı Kurt E, Karakuş R, Kılıçcı Ç, et al. Pregnancy Outcomes in Advanced Maternal age: a Single Reference Institution Experience. Acibadem Univ Saglik Bilim Derg. 2026;17(April, May, June 2026). doi:10.31067/acusaglik.1891194
Chicago
Darıcı Kurt, Ezgi, Resul Karakuş, Çetin Kılıçcı, et al. 2026. “Pregnancy Outcomes in Advanced Maternal Age: A Single Reference Institution Experience”. Acıbadem Üniversitesi Sağlık Bilimleri Dergisi 17 (April, May, June 2026). https://doi.org/10.31067/acusaglik.1891194.
EndNote
Darıcı Kurt E, Karakuş R, Kılıçcı Ç, Cimşit Kemahlı MN, Özaltın S, Karabudak CB, Bostancı Ergen E (June 1, 2026) Pregnancy Outcomes in Advanced Maternal age: a Single Reference Institution Experience. Acıbadem Üniversitesi Sağlık Bilimleri Dergisi 17 April, May, June 2026
IEEE
[1]E. Darıcı Kurt et al., “Pregnancy Outcomes in Advanced Maternal age: a Single Reference Institution Experience”, Acibadem Univ Saglik Bilim Derg, vol. 17, no. April, May, June 2026, June 2026, doi: 10.31067/acusaglik.1891194.
ISNAD
Darıcı Kurt, Ezgi - Karakuş, Resul - Kılıçcı, Çetin - Cimşit Kemahlı, Miray Nilüfer - Özaltın, Selin - Karabudak, Can Berk - Bostancı Ergen, Evrim. “Pregnancy Outcomes in Advanced Maternal Age: A Single Reference Institution Experience”. Acıbadem Üniversitesi Sağlık Bilimleri Dergisi 17/April, May, June 2026 (June 1, 2026). https://doi.org/10.31067/acusaglik.1891194.
JAMA
1.Darıcı Kurt E, Karakuş R, Kılıçcı Ç, Cimşit Kemahlı MN, Özaltın S, Karabudak CB, Bostancı Ergen E. Pregnancy Outcomes in Advanced Maternal age: a Single Reference Institution Experience. Acibadem Univ Saglik Bilim Derg. 2026;17. doi:10.31067/acusaglik.1891194.
MLA
Darıcı Kurt, Ezgi, et al. “Pregnancy Outcomes in Advanced Maternal Age: A Single Reference Institution Experience”. Acıbadem Üniversitesi Sağlık Bilimleri Dergisi, vol. 17, no. April, May, June 2026, June 2026, doi:10.31067/acusaglik.1891194.
Vancouver
1.Ezgi Darıcı Kurt, Resul Karakuş, Çetin Kılıçcı, Miray Nilüfer Cimşit Kemahlı, Selin Özaltın, Can Berk Karabudak, Evrim Bostancı Ergen. Pregnancy Outcomes in Advanced Maternal age: a Single Reference Institution Experience. Acibadem Univ Saglik Bilim Derg. 2026 Jun. 1;17(April, May, June 2026). doi:10.31067/acusaglik.1891194