ArticleCMAJ open2014
Rates of breast cancer surgery in Canada from 2007/08 to 2009/10: retrospective cohort study.
Article in CMAJ open, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 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
22 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.
- Value of Geographical Information Systems in Analyzing Geographic Accessibility to Inform Radiotherapy Planning: A Systematic Review.JCO global oncology · 2022Pooled it
- Intraoperative fluorescence imaging with aminolevulinic acid detects grossly occult breast cancer: a phase II randomized controlled trial.Breast cancer research : BCR · 2021Trial
- Breast Cancer Local Recurrence in Patients With and Without Post-Mastectomy Immediate Breast Reconstruction: Systematic Review and Meta-Analysis.Plastic surgery (Oakville, Ont.) · 2026Review
- A handheld device for intra-cavity and ex vivo fluorescence imaging of breast conserving surgery margins with 5-aminolevulinic acid.BMC biomedical engineering · 2024Article
- Society of Surgical Oncology Breast Disease Site Working Group Statement on Contralateral Mastectomy: Indications, Outcomes, and Risks.Annals of surgical oncology · 2024Review
- Breast Cancer After Reduction Mammoplasty: A Population-Based Analysis of Incidence, Treatment and Screening Patterns.Annals of surgery open : perspectives of surgical history, education, and clinical approaches · 2023Article
- Preoperative MRI features predict failed breast-conserving surgery: construction of a predictive model.Translational cancer research · 2022Article
- Article
- Assessment of Breast Cancer Surgery in Manitoba: A Descriptive Study.Current oncology (Toronto, Ont.) · 2021Article
- Implementation of the Canadian National Standards in Breast Cancer Surgical Care: Gaps, Barriers, Enablers and Opportunities.Current oncology (Toronto, Ont.) · 2021Article
- Mastectomy tattoos: An emerging alternative for reclaiming self.Nursing forum · 2020Article
- Cross-Canada differences in early-stage breast cancer treatment and acute-care use.Current oncology (Toronto, Ont.) · 2019Article
- Breast Cancer Care in South India: Is Practice Concordant With National Guidelines?Journal of global oncology · 2019Article
- Factors influencing surgical treatment decisions for breast cancer: a qualitative exploration of surgeon and patient perspectives.Current oncology (Toronto, Ont.) · 2019Article
- Feasibility of Implementing a Breast Reconstruction Database.Plastic surgery (Oakville, Ont.) · 2019Article
- Surgical treatment choices for breast cancer in Newfoundland and Labrador: a retrospective cohort study.Canadian journal of surgery. Journal canadien de chirurgie · 2018Article
- Oncoplastic and reconstructive breast surgery in Canada: breaking new ground in general surgical trainingCanadian journal of surgery. Journal canadien de chirurgie · 2018Article
- Re-excision and survival following breast conserving surgery in early stage breast cancer patients: a population-based study.BMC health services research · 2018Article
- Breast cancer surgical treatment choices in Newfoundland and Labrador, Canada: Patient and surgeon perspectives.Journal of public health research · 2017Article
- Reoperations after primary breast conserving surgery in women with invasive breast cancer in Catalonia, Spain: a retrospective study.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2017Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSurgery is a common and important component of breast cancer treatment. We assessed the rates of breast cancer surgery across Canada from 2007/08 to 2009/10.
methodsWe used hospital and day surgery data from the Canadian Institute for Health Information to assemble a cohort of women who had undergone breast cancer surgery. We identified the index surgical procedure and subsequent surgical procedures performed within 1 year for each woman included in the analysis. We calculated the crude mastectomy rate for each province, and we calculated the adjusted mastectomy rate for select jurisdictions using a logistic regression model fitted using age, neighbourhood income quintile and travel time.
resultsIn total, 57 840 women underwent breast cancer surgery during the study period. Among women with unilateral invasive breast cancer, the crude mastectomy rate was 39%. Adjusted rates for mastectomy varied widely by province (26%-69%). The rate of re-excision within 1 year for women who had breast-conserving surgery as their index procedure was 23% and varied by province in terms of frequency and type (mastectomy or repeat breast-conserving surgery). Among women who underwent mastectomy for unilateral invasive breast cancer, 6% also underwent contralateral prophylactic mastectomy, and 7% had immediate breast reconstruction following surgery. Of mastectomy procedures, 20% were performed as day surgery; for breast-conserving surgery, 70% were performed as day surgery.
interpretationThere is substantial interprovincial variation in surgical care for breast cancer in Canada. Further research is needed to better understand such variation, and continued monitoring should be the focus of quality initiatives.
Identifiers
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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.