Cancer Causes & Control

, Volume 3, Issue 1, pp 95–99 | Cite as

Colorectal cancer and solar radiation

  • Julia C. Emerson
  • Noel S. Weiss
Brief Report

It has been suggested that sunlight might have a role in the prevention of colorectal cancer via a mechanism involving vitamin D. We used data from nine population-based cancer registries in the United States to analyze incidence rates for colon and rectal cancer during 1973–84 as a function of regional variation in the levels of available solar radiation. Data were restricted to include only those persons born and diagnosed in the same state. Incidence rates of colon and rectal cancer among men tended to increase with decreasing levels of solar radiation. Compared to rates in New Mexico and Utah, for example, rates in the Detroit area (MI), Connecticut, and western Washington were 50 percent to 80 percent higher. Among women, colon cancer rates showed a similar trend, though of smaller magnitude; rates of rectal cancer among women did not vary in relation to levels of available solar radiation.

Key words

Colorectal neoplasms incidence sunlight United States 

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Copyright information

© Rapid Communications of Oxford Ltd 1992

Authors and Affiliations

  • Julia C. Emerson
  • Noel S. Weiss

There are no affiliations available

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