ArticleCancer causes & control : CCC2017
Sedentary time and postmenopausal breast cancer incidence.
Article in Cancer causes & control : CCC, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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Who cites it
10 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Sedentary Behavior and Health: Update from the 2018 Physical Activity Guidelines Advisory Committee.Medicine and science in sports and exercise · 2019Pooled it
- Modelling the potential health and economic benefits of reducing population sitting time in Australia.The international journal of behavioral nutrition and physical activity · 2022Trial
- Sedentary behaviour and cancer risk: a World Cancer Research Fund International Global Cancer Update Programme (CUP Global) systematic literature review and meta-analysis.medRxiv : the preprint server for health sciences · 2026Article
- Sedentary Time and Breast Cancer Risk in the Sister Study Cohort.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2025Article
- Sitting time and risk of cancer incidence and cancer mortality in postmenopausal women: the Women's Health Accelerometry Collaboration.Cancer causes & control : CCC · 2025Article
- Association between daily sitting time and breast cancer among obese women: a nationwide population-based study.BMC women's health · 2025Article
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- Article
- A Personalized, Dynamic Physical Activity Intervention Is Feasible and Improves Energetic Capacity, Energy Expenditure, and Quality of Life in Breast Cancer Survivors.Frontiers in oncology · 2021Article
- Association between breast cancer risk and leisure physical activity in a rural cohort population.Translational cancer research · 2019Article
Corrections and comments
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Authors and funding
18 authors.
Funding
Abstract
purposeThe objective of this study was to evaluate the prospective association between sedentary time and postmenopausal breast cancer incidence, and whether associations differ by race/ethnicity, physical activity levels, and body measurements.
methodsThe Women's Health Initiative Observational Study is a prospective cohort among women ages 50-79 years at baseline (1994-1998) (analytic cohort = 70,233). Baseline questionnaire data were used to estimate time spent sitting and total sedentary time. Associations between time spent sitting and invasive breast cancer incidence overall (n = 4,115 cases through September 2015), and by hormone receptor subtypes, were investigated using Cox proportional hazards regression. Analyses were replicated stratified by race/ethnicity, body measurements, and physical activity.
resultsAmong women in this study, 34.5% reported ≤ 5 h/day sitting, 40.9% reported 6-9 h/day and 24.7% reported ≥ 10 h/day. Time spent sitting (≥ 10 vs. ≤5 h/day adjusted HR = 1.00, 95% CI 0.92-1.09) was not associated with breast cancer incidence, regardless of hormone receptor subtype. Associations did not differ by race/ethnicity, physical activity, or body measurements.
conclusionsResults from this study do not support an association between sedentary time and breast cancer incidence.
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