In an analysis of data involving almost 50,000 people with advanced colorectal cancer from 1992 to 2007, researchers found significant improvements in the five-year survival rates for patients of Asian descent and whites. Survival gains among blacks and Hispanics were not statistically significant, according to the study in the journal Cancer Causes and Control. "The reasons why ethnic minorities are not getting equal treatment are complicated, but likely include poorer health coming into the system, and lower socioeconomic status, which clearly leads to barriers to good health care," the study's lead researcher said.

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