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July 8, 2008Higher education associated with greater gains in mortality reduction from common cancers |
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From EurekAlert! - Breaking News: A study published in the July 8 online issue of the Journal of the National Cancer Institute shows that more highly educated individuals had mortality reductions in nearly all of these cancers, while less educated individuals had a mortality reduction in only one of the cancer types. In previous studies, researchers examined the impact of area-level socioeconomic status (SES) on cancer mortality trends and found an association between higher SES and bigger gains in mortality reduction. Investigators have not previously examined the association of individual SES components, such as education level, with cancer mortality. Jemal and colleagues found that there was a statistically significant decline in mortality from prostate, lung, and colorectal cancer for men, both white and black, who had 16 or more years of education (i.e., a college degree). Death rates also decreased for colorectal, breast, and lung cancers among white and black women with 16 or more years of education although the decline in lung cancer mortality did not reach statistical significance in black women. By contrast, the only statistically significant decrease in mortality in individuals with less than 12 years of education was a reduction in breast cancer mortality among white women. "This analysis of recent trends in mortality rates from the four most common cancer sites among 25- to 64-year old white and black men and women in the United States by educational attainment illustrates that the remarkable reduction in mortality from these common cancers during this 9-year interval was confined largely to more highly educated men and women," the authors conclude.
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