Effects of Socioeconomic Status on Colon Cancer Treatment Accessibility and Survival in Toronto, Ontario, and San Francisco, California, 1996-2006.
American Journal of Public Health, 2010
We examined the differential effects of socioeconomic status on colon cancer care and survival in Toronto, Ontario, Canada, and San Francisco, California.Methods.
We analyzed registry data for colon cancer patients from Ontario (n=930) and California (n=1014), diagnosed between 1996 and 2000 and followed until 2006, on stage, surgery, adjuvant chemotherapy, and survival.
Income was directly associated with lymph node evaluation, chemotherapy, and survival in San Francisco but not in Toronto.
After adjustment for stage, survival was better for low-income residents of Toronto than for those of San Francisco.
Middle- to low-income patients were more likely to receive indicated chemotherapy in Toronto than in San Francisco.Conclusions.
Socioeconomic factors appear to mediate colon cancer care in urban areas of the United States but not in Canada.
Improvements are needed in screening, diagnostic investigations, and treatment access among low-income Americans.
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