ArticleCancer causes & control : CCC2015
Sleep duration and cancer risk in women.
Article in Cancer causes & control : CCC, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 7 of them syntheses that pooled it.
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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.
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.
Who cites it
41 citing papers in PubMed, 7 syntheses or guidelines pooled it.
- The association between sleep quantity, insomnia and lung cancer risk - A systematic review and meta-analysis.Sleep & breathing = Schlaf & Atmung · 2024Pooled it
- The association between sleep duration and lung cancer: a meta-analysis.Sleep & breathing = Schlaf & Atmung · 2024Pooled it
- Pooled it
- Pooled it
- Pooled it
- Sleep duration and the risk of cancer: a systematic review and meta-analysis including dose-response relationship.BMC cancer · 2018Pooled it
- Long-Term Sleep Duration as a Risk Factor for Breast Cancer: Evidence from a Systematic Review and Dose-Response Meta-Analysis.BioMed research international · 2017Pooled it
- Sleep duration and the risk of epithelial ovarian cancer.Cancer causes & control : CCC · 2025Article
- A narrative review of sleep and breast cancer: from epidemiology to mechanisms.Cancer causes & control : CCC · 2025Review
- Mendelian randomization study of sleep traits and risk of colorectal cancer.Scientific reports · 2025Article
- Bidirectional crosstalk between sleep disorders and gynecological cancers: unraveling molecular synergies and precision therapeutics.Frontiers in medicine · 2025Review
- Sleep and cancer mortality in the Cancer Prevention Study-II.Cancer causes & control : CCC · 2024Article
- Decoding Cancer Risk: Understanding Gene-Environment Interactions in Cancer Development.Cureus · 2024Review
- Eyes Wide Open: Sleep as a Potential Contributor to Racial and Ethnic Disparities in Cancer.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2024Review
- Prospective analysis of sleep characteristics, chronotype, and risk of breast cancer in the california teachers study.Cancer causes & control : CCC · 2024Article
- Review
- Night shift work, sleep duration and endometrial cancer risk: A pooled analysis from the Epidemiology of Endometrial Cancer Consortium (E2C2).Sleep medicine reviews · 2023Review
- Article
- Sleep and breast and prostate cancer risk in the MCC-Spain study.Scientific reports · 2022Article
- Sleep Traits, Night Shift Work and Lung Cancer Risk among Women: Results from a Population-Based Case-Control Study in France (The WELCA Study).International journal of environmental research and public health · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
purposeThe objective was to conduct an analysis of sleep duration and risk of selected site-specific and groups of cancer among a large prospective cohort of California women.
methodsThe study population was comprised of 101,609 adult females participating in the California Teachers Study. All sites of invasive cancer prospectively diagnosed from baseline (1995-1996) through 2011 were identified through linkage to the California Cancer Registry (n = 12,322). Site-specific analyses focused on the following cancers: breast (n = 5,053), colorectal (n = 983), lung (n = 820), melanoma (n = 749), and endometrial (n = 957). Additionally, we evaluated a group of estrogen-mediated cancers consisting of breast, endometrial, and ovarian cancer (n = 6,458). Sleep duration was based on self-report of average time sleeping in the year prior to baseline. Cox proportional hazard models were used to calculate adjusted hazard ratios and 95 % confidence intervals (HRs, 95 % CI).
resultsPoint estimates for all sites and site-specific cancers generally were near or below one for short sleepers (<6 h/night) and above one for long sleepers (10+ h/night); confidence intervals, however, were wide and included unity. Compared to average sleepers (7-9 h/night), long sleepers had an increased risk of the group of estrogen-mediated cancers (HR 1.22, 95 % CI 0.97-1.54, p (trend) = 0.04).
conclusionsThese analyses suggest that longer sleep may be associated with increased risks of estrogen-mediated cancers. Further studies with more refined measures of sleep duration and quality are warranted.
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Registered trials
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.