Cited by 79Ovarian function and disordersCancer Risks and FactorsEndometrial and Cervical Cancer Treatments

Risk of endometrial cancer in patients with polycystic ovarian syndrome: A meta‑analysis

Open access
Johnson, Jean-Ellen, Daley, Diandra, Tarta, Cristi, Stanciu, Paul·2023·Oncology Letters

Abstract

While existing literature suggests an association between polycystic ovarian syndrome (PCOS) and endometrial cancer, the sparsity and inconsistency of current evidence indicates a lack of clarity regarding the exact strength of this association. It also remains uncertain whether the degree of risk of disease is affected by confounding factors, such as age and body mass index (BMI). The present meta‑analysis is aimed to quantify the risk of endometrial cancer in female subjects with PCOS compared to those without PCOS. PubMed, MEDLINE, EMBASE, Scopus and Cochrane were searched from inception to October 31, 2022, to identify peer‑reviewed case‑control, cohort and cross‑sectional studies that assessed the association between endometrial cancer and PCOS and contained original data. Two researchers independently extracted data and performed quality assessment using the Newcastle‑Ottawa criteria. Pooled odds ratios (ORs) were calculated using the random‑effect model and inverse variance. The degree of heterogeneity was assessed using I² statistics. A total of 10 relevant studies were identified and included in the meta‑analysis (comprising 12,248 female patients with PCOS and 54,120 controls). Females with PCOS had a significantly increased odds of developing endometrial cancer as compared to those without PCOS [OR, 4.07; 95% confidence interval (CI), 2.13‑7.78; P<0.0001]. When postmenopausal subjects (age, >54 years) were excluded from the meta‑analysis, the odds increased further (OR, 5.14; 95% CI, 3.22‑8.21; P<0.00001). Patients with PCOS are up to 5 times more likely to develop endometrial cancer compared to those without PCOS. Larger, prospective studies that are well‑controlled for confounding factors, such as BMI, are required.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.3892/ol.2023.13754

Cites

41 of 41 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

  • The prevalence of endometrial cancer has been reported to be increased 3-5 fold in those with PCOS in the postmenopause years, and an increased risk for ovarian cancer has been reported in younger women with PCOS in the premenopause years.

    “The prevalence of endometrial cancer has been reported to be increased 3-5 fold in those with PCOS in the postmenopause years, and an increased risk for ovarian cancer has been reported in younger women with PCOS in the premenopause years.6,123, 124, 125”

    From Increased Prevalence of Adverse Health Outcomes Across the Lifespan in Those Affected by Polycystic Ovary Syndrome: A Canadian Population Cohort (2024) · cites this paper as [125]

    The Results (Data analysis; page not provided) report approximately fourfold higher odds of endometrial cancer in women with PCOS overall, supporting the magnitude of that part of the claim. The paper does not assign that estimate specifically to postmenopausal women: it reports approximately fivefold higher odds after excluding them. No passage found in the paper reports increased ovarian-cancer risk in younger women with PCOS. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. [24]Review Manager (RevMan) [Computer program] Version 5.4 The Cochrane Collaboration 2020

Cited by

Sorted by citations

Authors
Johnson, J.-E., Daley, D., Tarta, C., & Stanciu, P.
Affiliations
  • West Hertfordshire Hospitals NHS Trust (GB)
  • Department X, 2nd Surgical Clinic, ‘Victor Babes’ University of Medicine and Pharmacy, 300041 Timisoara, Romania
Corresponding author
Daley, Diandra
Venue
Oncology Letters
Published
2023-03-08
Volume
25
Issue
4
Pages
168-168
ISSN
  • 1792-1074 (ISSN-L)
  • 1792-1082
OpenAlex
W4323565226
Cited by
78
References
41
Citations by year
2026: 23 · 2025: 32 · 2024: 16 · 2023: 7
FWCI
18.70
Type
journal article
Language
en
Open access
Licence
cc-by-nc-nd
Locations
  • Oncology Letters (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian function and disorders
  • Health Sciences › Medicine › Oncology › Cancer Risks and Factors
  • Health Sciences › Medicine › Obstetrics and Gynecology › Endometrial and Cervical Cancer Treatments
Keywords
polycystic ovary syndrome, endometrial cancer, cancer risk, body mass index, postmenopausal women, confounding factors

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