Evidence map›Paper›PMID 25096668›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2014

Obstructive sleep apnea and the prevalence and incidence of cancer.

Tetyana Kendzerska, Richard S Leung, Gillian Hawker, George Tomlinson, Andrea S Gershon

Abstract read
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 3 pooled it
–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

54 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Association of obstructive sleep apnea and nocturnal hypoxemia with all-cancer incidence and mortality: a systematic review and meta-analysis.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2022
    Pooled it
  3. Sleep Disorders in Cancer-A Systematic Review.International journal of environmental research and public health · 2021
    Pooled it
  4. Nocturnal Melatonin Deficiency in Colorectal Cancer: Independent Predictive Value Beyond Sleep Quality.The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology · 2026
    Article
  5. Article
  6. Review
  7. Cancer and obstructive sleep apnea.Chinese medical journal · 2025
    Article
  8. Article
  9. Review
  10. Article
  11. Obstructive sleep apnea severity, circulating biomarkers, and cancer risk.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2024
    Article
  12. Article
  13. Article
  14. Article
  15. International Consensus Statement on Obstructive Sleep Apnea.International forum of allergy & rhinology · 2023
    Review
  16. Article
  17. Screening for obstructive sleep apnea in patients with cancer - a machine learning approach.Sleep advances : a journal of the Sleep Research Society · 2023
    Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Tetyana KendzerskaInstitute of Health Policy, Management and Evaluation (Tomlinson), University of Toronto; Institute for Clinical Evaluative Sciences (Kendzerska, Hawker, Gershon); Women's College Research Institute (Kendzerska, Hawker), Women's College Hospital, University of Toronto; Department of Medicine (Kendzerska, Leung, Hawker, Gershon), University of Toronto; Department of Medicine (Leung), St. Michael's Hospital; Department of Medicine (Tomlinson), University Health Network and Mount Sinai Hospital; Department of Medicine (Gershon), Sunnybrook Health Sciences Centre, Toronto, Ont. tetyana.kendzerska@mail.utoronto.ca.
Richard S LeungInstitute of Health Policy, Management and Evaluation (Tomlinson), University of Toronto; Institute for Clinical Evaluative Sciences (Kendzerska, Hawker, Gershon); Women's College Research Institute (Kendzerska, Hawker), Women's College Hospital, University of Toronto; Department of Medicine (Kendzerska, Leung, Hawker, Gershon), University of Toronto; Department of Medicine (Leung), St. Michael's Hospital; Department of Medicine (Tomlinson), University Health Network and Mount Sinai Hospital; Department of Medicine (Gershon), Sunnybrook Health Sciences Centre, Toronto, Ont.
Gillian HawkerInstitute of Health Policy, Management and Evaluation (Tomlinson), University of Toronto; Institute for Clinical Evaluative Sciences (Kendzerska, Hawker, Gershon); Women's College Research Institute (Kendzerska, Hawker), Women's College Hospital, University of Toronto; Department of Medicine (Kendzerska, Leung, Hawker, Gershon), University of Toronto; Department of Medicine (Leung), St. Michael's Hospital; Department of Medicine (Tomlinson), University Health Network and Mount Sinai Hospital; Department of Medicine (Gershon), Sunnybrook Health Sciences Centre, Toronto, Ont.
George TomlinsonInstitute of Health Policy, Management and Evaluation (Tomlinson), University of Toronto; Institute for Clinical Evaluative Sciences (Kendzerska, Hawker, Gershon); Women's College Research Institute (Kendzerska, Hawker), Women's College Hospital, University of Toronto; Department of Medicine (Kendzerska, Leung, Hawker, Gershon), University of Toronto; Department of Medicine (Leung), St. Michael's Hospital; Department of Medicine (Tomlinson), University Health Network and Mount Sinai Hospital; Department of Medicine (Gershon), Sunnybrook Health Sciences Centre, Toronto, Ont.
Andrea S GershonInstitute of Health Policy, Management and Evaluation (Tomlinson), University of Toronto; Institute for Clinical Evaluative Sciences (Kendzerska, Hawker, Gershon); Women's College Research Institute (Kendzerska, Hawker), Women's College Hospital, University of Toronto; Department of Medicine (Kendzerska, Leung, Hawker, Gershon), University of Toronto; Department of Medicine (Leung), St. Michael's Hospital; Department of Medicine (Tomlinson), University Health Network and Mount Sinai Hospital; Department of Medicine (Gershon), Sunnybrook Health Sciences Centre, Toronto, Ont.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA link between obstructive sleep apnea and cancer development or progression has been suggested, possibly through chronic hypoxemia, but supporting evidence is limited. We examined the association between the severity of obstructive sleep apnea and prevalent and incident cancer, controlling for known risk factors for cancer development.

methodsWe included all adults referred with possible obstructive sleep apnea who underwent a first diagnostic sleep study at a single large academic hospital between 1994 and 2010. We linked patient data with data from Ontario health administrative databases from 1991 to 2013. Cancer diagnosis was derived from the Ontario Cancer Registry. We assessed the cross-sectional association between obstructive sleep apnea and prevalent cancer at the time of the sleep study (baseline) using logistic regression analysis. Cox regression models were used to investigate the association between obstructive sleep apnea and incident cancer among patients free of cancer at baseline.

resultsOf 10 149 patients who underwent a sleep study, 520 (5.1%) had a cancer diagnosis at baseline. Over a median follow-up of 7.8 years, 627 (6.5%) of the 9629 patients who were free of cancer at baseline had incident cancer. In multivariable regression models, the severity of sleep apnea was not significantly associated with either prevalent or incident cancer after adjustment for age, sex, body mass index and smoking status at baseline (apnea-hypopnea index > 30 v. < 5: adjusted odds ratio [OR] 0.96, 95% confidence interval [CI] 0.71-1.30, for prevalent cancer, and adjusted hazard ratio [HR] 1.02, 95% CI 0.80-1.31, for incident cancer; sleep time spent with oxygen saturation < 90%, per 10-minute increase: adjusted OR 1.01, 95% CI 1.00-1.03, for prevalent cancer, and adjusted HR 1.00, 95% CI 0.99-1.02, for incident cancer).

interpretationIn a large cohort, the severity of obstructive sleep apnea was not independently associated with either prevalent or incident cancer. Additional studies are needed to elucidate whether there is an independent association with specific types of cancer.

Indexed as

AdultAgedFemaleHumansIncidenceMaleMiddle AgedNeoplasmsOntarioPrevalenceProportional Hazards ModelsRegistriesRetrospective StudiesRisk FactorsSeverity of Illness IndexSleep Apnea, Obstructive

Identifiers

PMID25096668
PMCPMC4162778

What OpenQuestion holds

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Registered trials

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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.