Evidence map›Paper›PMID 30763274›Full record

Observational studyEuropean journal of endocrinology2019

Increased risk of obstructive sleep apnoea in women with polycystic ovary syndrome: a population-based cohort study.

Balachandran Kumarendran, Dana Sumilo, Michael W O'Reilly, Konstantinos A Toulis, Krishna M Gokhale, Chandrika N Wijeyaratne, Arri Coomarasamy, Wiebke Arlt, Abd A Tahrani, Krishnarajah Nirantharakumar

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in European journal of endocrinology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 2 pooled it
4.0field-weighted citation impact, top 6% of its field
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

32 citing papers in PubMed, 2 syntheses or guidelines pooled it, 60 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Review
  5. Review
  6. Article
  7. Article
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  12. Metabolic and endocrine status associate with obstructive sleep apnea risk among patients with polycystic ovary syndrome.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2024
    Article
  13. Review
  14. Article
  15. Effect of obstructive sleep apnea on in vitro fertilization outcomes in women with polycystic ovary syndrome.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2024
    Article
  16. Article
  17. The Menstrual Cycle and Sleep.Sleep medicine clinics · 2023
    Review
  18. Article
  19. Review
  20. Review
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

10 authors at 3 institutions in 2 countries.

Balachandran KumarendranInstitute of Applied Health Research, University of Birmingham, Birmingham, UK.
Dana SumiloInstitute of Applied Health Research, University of Birmingham, Birmingham, UK.
Michael W O'ReillyInstitute of Metabolism and Systems Research, University of Birmingham.
Konstantinos A ToulisInstitute of Applied Health Research, University of Birmingham, Birmingham, UK.
Krishna M GokhaleInstitute of Applied Health Research, University of Birmingham, Birmingham, UK.
Chandrika N WijeyaratneDepartment of Obstetrics and Gynecology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka.
Arri CoomarasamyInstitute of Metabolism and Systems Research, University of Birmingham.
Wiebke ArltInstitute of Metabolism and Systems Research, University of Birmingham.
Abd A TahraniInstitute of Metabolism and Systems Research, University of Birmingham.
Krishnarajah NirantharakumarInstitute of Applied Health Research, University of Birmingham, Birmingham, UK.
University of Birmingham · GBHealth Data Research UK · GBUniversity of Colombo · LK

Funding

Department of Health CS-2013-13-029Medical Research Council MR/S003878/1
6 · The paper itself

Abstract

objectiveObesity is very common in patients with obstructive sleep apnoea (OSA) and polycystic ovary syndrome (PCOS). Longitudinal studies assessing OSA risk in PCOS and examining the role of obesity are lacking. Our objective was to assess the risk of OSA in women with vs without PCOS and to examine the role of obesity in the observed findings.

designPopulation-based retrospective cohort study utilizing The Health Improvement Network (THIN), UK.

methods76 978 women with PCOS and 143 077 age-, BMI- and location-matched women without PCOS between January 2000 and May 2017 were identified. Hazard ratio (HR) for OSA among women with and without PCOS were calculated after controlling for confounding variables using multivariate Cox models.

resultsMedian patient age was 30 (IQR: 25-35) years; median follow-up was 3.5 (IQR: 1.4-7.1) years. We found 298 OSA cases in PCOS women vs 222 in controls, with incidence rates for OSA of 8.1 and 3.3 per 10 000 person years, respectively. Women with PCOS were at increased risk of developing OSA (adjusted HR = 2.26, 95% CI: 1.89-2.69, P < 0.001), with similar HRs for normal weight, overweight and obese PCOS women.

conclusionsWomen with PCOS are at increased risk of developing OSA compared to control women irrespective of obesity. Considering the significant metabolic morbidity associated with OSA, clinicians should have a low threshold to test for OSA in women with PCOS. Whether OSA treatment has an impact on PCOS symptoms and outcomes needs to be examined.

Indexed as

Population SurveillanceAdultCohort StudiesFemaleHumansLongitudinal StudiesObesityPolycystic Ovary SyndromeRisk FactorsSleep Apnea, Obstructive

Identifiers

PMID30763274
PMCPMC6410684
OpenAlexW2913984858

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.