Evidence map›Paper›PMID 39474934›Full record

ArticleActa obstetricia et gynecologica Scandinavica2025

Polycystic ovary syndrome and gestational diabetes mellitus association to pregnancy outcomes: A national register-based cohort study.

Ragnheidur Valdimarsdottir, Eszter Vanky, Evangelia Elenis, Fredrik Ahlsson, Linda Lindström, Katja Junus, Anna-Karin Wikström, Inger Sundström Poromaa

Abstract read
In one paragraph

Article in Acta obstetricia et gynecologica Scandinavica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Trial
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  6. The Effects ofFood science & nutrition · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Ragnheidur ValdimarsdottirDepartment of Women's and Children's Health, Uppsala University, Uppsala, Sweden.ORCID 0009-0006-2771-8815
Eszter VankyDepartment of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.
Evangelia ElenisDepartment of Women's and Children's Health, Uppsala University, Uppsala, Sweden.ORCID 0000-0002-2253-4682
Fredrik AhlssonDepartment of Women's and Children's Health, Uppsala University, Uppsala, Sweden.
Linda LindströmDepartment of Women's and Children's Health, Uppsala University, Uppsala, Sweden.ORCID 0000-0003-4427-1075
Katja JunusDepartment of Women's and Children's Health, Uppsala University, Uppsala, Sweden.ORCID 0000-0003-4088-400X
Anna-Karin WikströmDepartment of Women's and Children's Health, Uppsala University, Uppsala, Sweden.
Inger Sundström PoromaaDepartment of Women's and Children's Health, Uppsala University, Uppsala, Sweden.

Funding

Perinatal Foundation
6 · The paper itself

Abstract

introductionIt is well known that both women with polycystic ovary syndrome (PCOS) and women with gestational diabetes mellitus (GDM) have increased risks of adverse pregnancy outcomes, but little is known whether the combination of these two conditions exacerbates the risks. We explored risk estimates for adverse pregnancy outcomes in women with either PCOS or GDM and the combination of both PCOS and GDM. MATERIAL AND

methodsNationwide register-based historical cohort study in Sweden including women who gave birth to singleton infants during 1997-2015 (N = 281 806). The risks of adverse pregnancy outcomes were estimated for women exposed for PCOS-only (n = 40 272), GDM-only (n = 2236), both PCOS and GDM (n = 1036) using multivariable logistic regression analyses. Risks were expressed as odds ratios with 95% confidence intervals (CIs) and adjusted for maternal characteristics, including maternal BMI. Women with neither PCOS nor GDM served as control group. Maternal outcomes were gestational hypertension, preeclampsia, postpartum hemorrhage, and obstetric anal sphincter injury. Neonatal outcomes were preterm birth, stillbirth, shoulder dystocia, born small or large for gestational age, macrosomia, low Apgar score, infant birth trauma, cerebral impact of the infant, neonatal hypoglycemia, meconium aspiration syndrome and respiratory distress.

resultsBased on non-significant PCOS by GDM interaction analyses, we found no evidence that having PCOS adds any extra risk beyond that of having GDM for maternal and neonatal outcomes. For example, the adjusted odds ratio for preeclampsia in women with PCOS-only were 1.18 (95% CI 1.11-1.26), for GDM-only 1.77 (95% CI 1.45-2.15), and for women with PCOS and GDM 1.86 (95% CI 1.46-2.36). Corresponding adjusted odds ratio for preterm birth in women with PCOS-only were 1.34 (95% CI 1.28-1.41), GDM-only 1.64 (95% CI 1.39-1.93), and for women with PCOS and GDM 2.08 (95% CI 1.67-2.58). Women with PCOS had an increased risk of stillbirth compared with the control group (aOR 1.52, 95% CI 1.29-1.80), whereas no increased risk was noted in women with GDM (aOR 0.58, 95% CI 0.24-1.39).

conclusionsThe combination of PCOS and GDM adds no extra risk beyond that of having GDM alone, for a number of maternal and neonatal outcomes. Nevertheless, PCOS is still an unrecognized risk factor in pregnancy, exemplified by the increased risk of stillbirth.

Indexed as

Diabetes, GestationalPolycystic Ovary SyndromePregnancy OutcomeRegistriesAdultCohort StudiesFemaleHumansInfant, NewbornPregnancyPregnancy ComplicationsRisk FactorsSwedengestational diabetesneonatal outcomespolycystic ovary syndromepreeclampsiapregnancy complicationspreterm birthstillbirth

Identifiers

PMID39474934
PMCPMC11683559

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.