Test A: 2A study was conducted to see how people respond to medical statistics. Each subject was given the following descriptions of three screening tests for cancer. If you have this test every 2 years, it will reduce your chance of dying from cancer A by around one third over the next 10 years. If you have this test every 2 years, it will reduce your chance of dying from cancer B from around 3 in 1,000 to around 2 in 1,000 over the next 10 years. Test B: Test C: If around 1,000 people have this test every 2 years, 1 person will be saved from dying from cancer C every 10 years. a. One of these describes the number needed to treat cancer (see Extensions Task 21). Which one? b. One describes the absolute risk reduction. Which one? SUBTRACT c. One describes the relative risk. Which one? X GREATER

Test A: 2A study was conducted to see how people respond to medical statistics. Each subject was given the following descriptions of three screening tests for cancer. If you have this test every 2 years, it will reduce your chance of dying from cancer A by around one third over the next 10 years. If you have this test every 2 years, it will reduce your chance of dying from cancer B from around 3 in 1,000 to around 2 in 1,000 over the next 10 years. Test B: Test C: If around 1,000 people have this test every 2 years, 1 person will be saved from dying from cancer C every 10 years. a. One of these describes the number needed to treat cancer (see Extensions Task 21). Which one? b. One describes the absolute risk reduction. Which one? SUBTRACT c. One describes the relative risk. Which one? X GREATER

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter17: Biotechnology And Genomics

Section: Chapter Questions

Problem 3VCQ: Figure 17.15 In 2011, the United States Preventative Services Task Force recommended against using...

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Studies have shown that there are significant differences in cancer rates among different ethnic groups. For example, the Japanese have very high rates of colon cancer but very low rates of breast cancer. It has also been demonstrated that when members of low-risk ethnic groups move to high-risk areas, their cancer risks rise to those of the high-risk area. For example, Japanese who live in the United States, where the risk of breast cancer is high, have higher rates of breast cancer than do Japanese who live in Japan. What are some of the possible explanations for this phenomenon? What factors may explain why the Japanese have higher rates of colon cancer than do other ethnic groups?
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