ArticleInternational journal of cancer2018
Progestin-only and combined oral contraceptives and receptor-defined premenopausal breast cancer risk: The Norwegian Women and Cancer Study.
Article in International journal of cancer, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
What it found
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.
- Combined and progestagen-only hormonal contraceptives and breast cancer risk: A UK nested case-control study and meta-analysis.PLoS medicine · 2023Pooled it
- Modifiable and Nonmodifiable Risk Factors for Breast Cancer: A Comprehensive Scoping Review.International journal of breast cancer · 2026Review
- The aetiology of breast cancer subtypes: results from the Million Women Study.Breast cancer research : BCR · 2025Article
- Impact of khat (Catha edulis) and oral contraceptive use on telomerase levels and tumor suppressor genes p53 and p21 in normal subjects and breast cancer patients.Scientific reports · 2024Article
- Menopausal hormone therapy and breast cancer risk: a population-based cohort study of 1.3 million women in Norway.British journal of cancer · 2024Article
- Antimicrobial peptide moricin induces ROS mediated caspase-dependent apoptosis in human triple-negative breast cancer via suppression of notch pathway.Cancer cell international · 2023Article
- Hormonal contraception and risk of breast cancer and breast cancer in situ among Swedish women 15-34 years of age: A nationwide register-based study.The Lancet regional health. Europe · 2022Article
- Article
- Review of the literature on combined oral contraceptives and cancer.Ecancermedicalscience · 2022Review
- Geospatiotemporal and causal inference study of cannabis and other drugs as risk factors for female breast cancer USA 2003-2017.Environmental epigenetics · 2022Article
- Review
- Crosstalk between progesterone receptor membrane component 1 and estrogen receptor α promotes breast cancer cell proliferation.Laboratory investigation; a journal of technical methods and pathology · 2021Article
- The Association Between Triglyceride-Glucose Index as a Marker of Insulin Resistance and the Risk of Breast Cancer.Frontiers in endocrinology · 2021Article
- National and Subnational Incidence, Mortality, and Years of Life Lost Due to Breast Cancer in Iran: Trends and Age-Period-Cohort Analysis Since 1990.Frontiers in oncology · 2021Article
- Recent Use of Oral Contraceptives and Risk of Luminal B, Triple-Negative, and HER2-Overexpressing Breast Cancer.Hormones & cancer · 2019Article
- Risk of lung cancer and physical activity by smoking status and body mass index, the Norwegian Women and Cancer Study.European journal of epidemiology · 2019Article
- Oral Contraceptive and Breast Cancer Risks: a Case Control Study in Six Referral Hospitals in IndonesiaAsian Pacific journal of cancer prevention : APJCP · 2018Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
Receptor-defined subtypes of breast cancer represent distinct cancer types and have differences in risk factors. Whether the two main hormonal forms of oral contraceptives (OCs); i.e. progestin-only (POC) and combined oral contraceptives (COC), are differentially associated with these subtypes are not well known. The aim of our study was to assess the effect of POC and COC use on hormone receptor-defined breast cancer risk in premenopausal women in a prospective population-based cohort - The Norwegian Women and Cancer Study (NOWAC). Information on OC use was collected from 74,862 premenopausal women at baseline. Updated information was applied when follow-up information became available. Multiple imputation was performed to handle missing data, and multivariable Cox regression models were used to calculate hazard ratios (HR) for breast cancer. 1,245 incident invasive breast cancer cases occurred. POC use ≥5 years was associated with ER+ (HR = 1.59, 95% CI 1.09- 2.32, p
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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.