ArticleDigestive diseases and sciences2011
Associations of physician supplies with colon cancer care in Ontario and California, 1996 to 2006.
Article in Digestive diseases and sciences, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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.
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Who cites it
11 citing papers in PubMed.
- Gastroenterology Specialist Supply and Early-Onset Colorectal Cancer Incidence and Mortality in the U.S., 2014-2018.Gastro hep advances · 2023Article
- Regional variations and associations between colonoscopy resource availability and colonoscopy utilisation: a population-based descriptive study in Ontario, Canada.BMJ open gastroenterology · 2022Article
- Palliative chemotherapy among people living in poverty with metastasised colon cancer: facilitation by primary care and health insurance.BMJ supportive & palliative care · 2019Article
- Temporal Trends in Geographic and Sociodemographic Disparities in Colorectal Cancer Among Medicare Patients, 1973-2010.The Journal of rural health : official journal of the American Rural Health Association and the National Rural Health Care Association · 2017Article
- Breast Cancer Care in California and Ontario: Primary Care Protections Greatest Among the Most Socioeconomically Vulnerable Women Living in the Most Underserved Places.Journal of primary care & community health · 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
- Multiplicative disadvantage of being an unmarried and inadequately insured woman living in poverty with colon cancer: historical cohort exploration in California.BMC women's health · 2015Article
- Better colon cancer care for extremely poor Canadian women compared with American women.Health & social work · 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
- The supply of physicians and care for breast cancer in Ontario and California, 1998 to 2006.Canadian journal of rural medicine : the official journal of the Society of Rural Physicians of Canada = Journal canadien de la medecine rurale : le journal officiel de la Societe de medecine rurale du Canada · 2011Article
- Breast cancer care in the Canada and the United States: ecological comparisons of extremely impoverished and affluent urban neighborhoods.Health & place · 2010Article
Corrections and comments
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Authors and funding
9 authors.
Funding
Abstract
backgroundThis study examined the differential effects of physician supplies on colon cancer care in Ontario and California. The associations of physician supplies with colon cancer stage at diagnosis, receipt of surgery and adjuvant chemotherapy, and 5-year survival were observed within each country and compared between-country.
methodsRandom samples of Ontario and California cancer registries provided 2,461 and 2,200 colon cancer cases that were diagnosed between 1996 and 2000, and followed until 2006. Both registries included data on the stage of disease at the time of diagnosis, receipt of cancer-directed surgery, receipt of adjuvant chemotherapy, and survival. Census tract-level data on low-income prevalence were, respectively, taken from 2001 and 2000 Canadian and United States population censuses. County-level primary care physician and gastroenterologist densities were computed for the same years.
resultsSignificant income-adjusted, gastroenterologist density threshold effects (2.0 or more vs. less than 2.0 per 100,000 inhabitants) were observed for early diagnosis (OR = 1.57) and 5-year survival (OR = 1.63) in Ontario, but not in California. Significant incremental threshold effects of primary care physician densities on chemotherapy receipt (8.0 and 9.0 or more per 10,000 inhabitants, respective ORs of 1.79 and 2.37) were also only observed in Ontario.
conclusionsThese colon cancer care findings support the theory that while personal economic resources are more predictive in America, community-level resources such as physician supplies are more predictive of health care access and effectiveness in Canada.
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