CoChat
Sign Up
Cited by 439Maternal and Perinatal Health InterventionsPregnancy and preeclampsia studiesGestational Diabetes Research and Management

The DOI matches its Crossref record; 52 of the 53 references it cites were found in a registry or an index.

Maternal age and adverse pregnancy outcome: a cohort study

Open access
Khalil, A., Syngelaki, A., Maiz, N., Zinevich, Y., Nicolaides, K. H.·2013·Ultrasound in Obstetrics & Gynecology
DOI 10.1002/uog.12494
Open this paper in CoChat — free accountOpen PDF

Abstract

Objective: To examine the association between maternal age and a wide range of adverse pregnancy outcomes after adjustment for confounding factors in obstetric history and maternal characteristics. Methods: This was a retrospective study in women with singleton pregnancies attending the first routine hospital visit at 11 + 0 to 13 + 6 weeks' gestation. Data on maternal characteristics, and medical and obstetric history were collected and pregnancy outcomes ascertained. Maternal age was studied, both as a continuous and as a categorical variable. Regression analysis was performed to examine the association between maternal age and adverse pregnancy outcome including pre‐eclampsia, gestational hypertension, gestational diabetes mellitus (GDM), preterm delivery, small‐for‐gestational age (SGA) neonate, large‐for‐gestational age (LGA) neonate, miscarriage, stillbirth and elective and emergency Cesarean section. Results: The study population included 76 158 singleton pregnancies with a live fetus at 11 + 0 to 13 + 6 weeks. After adjusting for potential maternal and pregnancy confounding variables, advanced maternal age (defined as ≥ 40 years) was associated with increased risk of miscarriage (odds ratio (OR), 2.32 (95% CI, 1.83–2.93); P < 0.001), pre‐eclampsia (OR, 1.49 (95% CI, 1.22–1.82); P < 0.001), GDM (OR, 1.88 (95% CI, 1.55–2.29); P < 0.001), SGA (OR, 1.46 (95% CI, 1.27–1.69); P < 0.001) and Cesarean section (OR, 1.95 (95% CI, 1.77–2.14); P < 0.001), but not with stillbirth, gestational hypertension, spontaneous preterm delivery or LGA. Conclusions: Maternal age should be combined with other maternal characteristics and obstetric history when calculating an individualized adjusted risk for adverse pregnancy complications. Advanced maternal age is a risk factor for miscarriage, pre‐eclampsia, SGA, GDM and Cesarean section, but not for stillbirth, gestational hypertension, spontaneous preterm delivery or LGA. Copyright © 2013 ISUOG. Published by John Wiley & Sons Ltd.

Overview

Integrity signals

Registry

Crossref · 10.1002/uog.12494

Cites

52 of 52 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Verification

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Citations

Cites

Flagged first, then by citations

1 of the 53 references couldn’t be matched to a known paper.

Research works printed but not linked: 7

  1. Office for National Statistics. Statistical Bulletin for Births and deaths in England and Wales 2008 Newport UK
  2. World Health Organization, 2008, Atlas of Health in Europe
  3. Statistics NZ, Demographic Trends 2007
  4. Bushnik T, 2008, The Children of Older First‐time Mothers in Canada: Their Health and Development
  5. Royal College of Obstetricians and Gynaecologists, 2009, RCOG Statement on later maternal age
  6. 10.3109/10641950109152635 · DOI
  7. World Health Organization, 2006, Report of a WHO/IDF consultation, Definition and Diagnosis of Diabetes Mellitus and Intermediate Hyperglycaemia, 1

Cited by

Sorted by citations

See all 439

Related

See all

Metadata

Authors
Khalil, A., Syngelaki, A., Maiz, N., Zinevich, Y., & Nicolaides, K. H.
Affiliations
  • University College London (GB)
  • King's College Hospital (GB)
  • Fetal Medicine Unit, Obstetrics and Gynecology Service, BioCruces Health Research Institute Hospital Universitario Cruces, University of the Basque Country (UPV/EHU) Barakaldo Spain
Corresponding author
Nicolaides, K. H.
ORCID
Venue
Ultrasound in Obstetrics & Gynecology
Publisher
Wiley
Published
2013-11-24
Volume
42
Issue
6
Pages
634-643
ISSN
  • 0960-7692 (ISSN-L)
  • 1469-0705
DOI
10.1002/uog.12494
OpenAlex
W1684740056
Cited by
439
References
53
Citations by year
2026: 23 · 2025: 37 · 2024: 33 · 2023: 46 · 2022: 39 · 2021: 44 · 2020: 59 · 2019: 40 · 2018: 42 · 2017: 29 · 2016: 27 · 2015: 12 · 2014: 8
FWCI
17.51
Type
journal article
Language
en
Open access
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Locations
  • Ultrasound in Obstetrics and Gynecology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Fetal Medicine Foundation (1 037 116, Charity No: 1037116, UK Charity No.: 1037116)
Topics
  • Health Sciences › Medicine › Obstetrics and Gynecology › Maternal and Perinatal Health Interventions
  • Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
  • Health Sciences › Medicine › Obstetrics and Gynecology › Gestational Diabetes Research and Management
Keywords
advanced maternal age, adverse pregnancy outcomes, miscarriage, preeclampsia, gestational hypertension, gestational diabetes mellitus, small for gestational age, large-for-gestational-age neonates, stillbirth, cesarean section, singleton pregnancy, pregnancy risk factors, first-trimester prenatal care, maternal characteristics, obstetric history, individual risk assessment
MeSH terms
Abortion, Spontaneous, Adult, Cesarean Section, Female, Fetal Macrosomia, Humans, Infant, Newborn, Infant, Small for Gestational Age, Maternal Age, Pre-Eclampsia, Pregnancy, Pregnancy Complications, Retrospective Studies, Smoking, Cohort Studies, Multivariate Analysis, Logistic Models, Diabetes, Gestational, Premature Birth, Stillbirth

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review