ArticleCancer causes & control : CCC2015
Breast cancer mortality in relation to receipt of screening mammography: a case-control study in Saskatchewan, Canada.
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 4 papers, 1 of them a synthesis 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.
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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
4 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Screening for breast cancer: a systematic review update to inform the Canadian Task Force on Preventive Health Care guideline.Systematic reviews · 2024Pooled it
- Double-blind placebo-controlled randomized clinical trial on the use of paracetamol for performing mammography.Medicine · 2018Trial
- Article
- Evaluation of a Culturally Tailored Education to Promote Breast and Cervical Cancer Screening Among Chinese-Australian Women.Journal of cancer education : the official journal of the American Association for Cancer Education · 2016Article
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2 authors.
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Abstract
purposeThe efficacy of screening mammography in reducing breast cancer mortality continues to be controversial. In addition, few data exist on the efficacy of screening mammography in women 70 years of age or older. An organized screening mammogram program has existed in Saskatchewan since the mid-1990s. It offers mammography every 2 years to women ≥50 years of age.
methodsWe conducted a population-based case-control study to evaluate the efficacy of screening mammography, as practiced in Saskatchewan, Canada. Cases (n = 501) were women who died of breast cancer during 1995-2008 and were at least 52 years of age at the time of their diagnosis. Controls (n = 5,009) were matched to cases on birth year and duration of healthcare coverage prior to the cases' breast cancer diagnosis date. In cases and controls, receipt of screening mammography during the several years up to and including the date of the case's diagnosis of breast cancer was ascertained from the records of the screening program.
resultsReceipt of a screening mammogram in the preceding 2 years was more common among controls (53 %) than cases (37 %), OR 0.51 (95 % CI 0.42-0.62). A decreased risk was observed among women in all age groups, including those 70-79 years (OR 0.40; 95 % CI 0.27-0.60).
conclusionOur findings suggest that receipt of screening mammography among women in Saskatchewan has been associated with a decreased risk of death from breast cancer.
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