Half of all premature deaths from colorectal cancer (described as deaths in people ages 25 to 64) in the United States are linked to ethnic, socioeconomic, and geographic inequalities, and therefore could be prevented according to a new study by American Cancer Society researchers. The report, which appears in the Journal of Clinical Oncology, found more preventable deaths occur in southern states than in northern and western states, but that in virtually all states those with the least education had significantly higher colorectal cancer death rates.
Colorectal cancer (CRC) is the third leading cause of cancer death for both men and women in the U.S. Historically, death rates were higher in those with higher socioeconomic status, in whites, and in northern states. Over the past few decades, though, that switched, with death rates now highest in persons with the lowest socioeconomic status, in blacks, and in southern states. That shift is likely the result of access to better early detection and treatment.
To better understand the extent to which these racial/ethnic and socioeconomic disparities vary within each state and contribute to premature death as a result of colorectal cancer, American Cancer Society researchers led by Ahmedin Jemal, Ph.D., looked at CRC death rates in people between ages 25 and 64 by state, race/ethnicity, and educational attainment (as a marker of socioeconomic status), using data from the National Vital Statistics System of the National Center for Health Statistics (part of the Centers for Disease Control and Prevention). The age range of 25 to 64 was chosen because in this age group, a greater number of life-years are lost and because cancer disparities are larger in this age group than in age 65 and above, in part due to differences in the availability of universal healthcare coverage.
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