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Understanding Cancer Series

  • Posted: 01/28/2005
  • Reviewed: 09/01/2006

Slide 40

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SNPs and Cancer Risk

Scientists are also using SNPs to calculate risk factors associated with cancer in large populations.

First, imagine analyzing the SNPs in a random population of 100 people. 80 percent are found to have SNP A and the remaining 20 percent have SNP B. Now look at another 100 people, all with kidney cancer. In this group, 60 percent have SNP A and 40 percent have SNP B. Neither SNP A nor SNP B causes cancer. However, from this data, physicians can say that a person who has SNP B is at a higher risk for kidney cancer than a person with SNP A.

SNPs and Cancer Risk