ArticleAnnals of epidemiology2003
An international comparison of breast cancer survival: Winnipeg, Manitoba and Des Moines, Iowa, metropolitan areas.
Article in Annals of epidemiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
25 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Breast cancer survival in Canada and the USA: meta-analytic evidence of a Canadian advantage in low-income areas.International journal of epidemiology · 2009Pooled it
- Geographic Disparity of Outcome in Patients With Cancer Over Decades: The Surveillance, Epidemiology, and End Results.Clinical lymphoma, myeloma & leukemia · 2023Article
- Population-Based Cancer Survival in Canada and the United States by Socioeconomic Status: Findings from the CONCORD-2 Study.Journal of registry management · 2022Article
- Article
- Relation between socioeconomic variables and surgical, systemic and radiation treatment in a cohort of patients with breast cancer in an urban Canadian centreCanadian journal of surgery. Journal canadien de chirurgie · 2019Article
- A Tale of Two Health-Care Systems: Cost-Utility Analysis of Open Carpal Tunnel Release in Canada and the United States.Plastic surgery (Oakville, Ont.) · 2017Article
- Colon cancer care and survival: income and insurance are more predictive in the USA, community primary care physician supply more so in Canada.International journal for equity in health · 2015Article
- Effect of socioeconomic status as measured by education level on survival in breast cancer clinical trials.Psycho-oncology · 2013Article
- Mediation of the effects of living in extremely poor neighborhoods by health insurance: breast cancer care and survival in California, 1996 to 2011.International journal for equity in health · 2013Article
- Effects of being uninsured or underinsured and living in extremely poor neighborhoods on colon cancer care and survival in California: historical cohort analysis, 1996-2011.BMC public health · 2012Article
- Article
- Comparing population health in the United States and Canada.Population health metrics · 2010Article
- Breast cancer care in the Canada and the United States: ecological comparisons of extremely impoverished and affluent urban neighborhoods.Health & place · 2010Article
- Income-related health inequalities in Canada and the United States: a decomposition analysis.American journal of public health · 2009Article
- Associations of physician supplies with breast cancer stage at diagnosis and survival in Ontario, 1988 to 2006.Cancer · 2009Article
- Wait times for surgical and adjuvant radiation treatment of breast cancer in Canada and the United States: greater socioeconomic inequity in America.Clinical and investigative medicine. Medecine clinique et experimentale · 2009Article
- Breast cancer survival in ontario and california, 1998-2006: socioeconomic inequity remains much greater in the United States.Annals of epidemiology · 2009Article
- Increased racial differences on breast cancer care and survival in America: historical evidence consistent with a health insurance hypothesis, 1975-2001.Breast cancer research and treatment · 2009Article
- Patient education level as a predictor of survival in lung cancer clinical trials.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2008Article
- Regarding "Associations between socioeconomic status and cancer survival".Annals of epidemiology · 2006Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
purposeExtending previous Canadian-United States cancer survival comparisons in large metropolitan areas, this study compares breast cancer survival in smaller metropolitan areas: Winnipeg, Manitoba and Des Moines, Iowa.
methodsManitoba and Iowa cancer registries, respectively, provided a total of 2,383 and 1,545 women with breast cancer (1984 to 1992, followed until December 31, 1997). Socioeconomic data for each person's residence at the time of diagnosis was taken from population censuses.
resultsSocioeconomic status and breast cancer survival were directly associated in the US cohort, but not in the Canadian cohort. Compared with similar patients in Des Moines, residents of the lowest fifth of income areas in Winnipeg experienced a significant 5-year survival advantage (survival rate ratio [SRR] = 1.14). In these lowest income areas, the Canadian survival advantage was larger among women aged 25 to 64 years (SRR = 1.23), and this was observed in the middle fifth of income areas among this younger cohort (SRR = 1.11). The Canadian survival advantage even seemed apparent in the poorest neighborhoods with relatively high representations of Aboriginal people (SRR = 1.16).
conclusionThis study replicated the finding of advantaged Canadian cancer survival in smaller metropolitan areas that had been consistently observed in larger metropolitan areas. Canada's single payer health care system seems to offer similar advantages across a number of diverse urban contexts.
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