What is the risk of breast cancer for women

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Reference no: EM133295790

CASE SCENARIO: In a cohort breast cancer study, a woman is considered to be "exposed" if she first gave birth at age 30 or older. In a sample of 4540 women who gave birth to their first child before the age of 30, 65 developed breast cancer. Of the 1628 women who first gave birth at age 30 or older, 31 were diagnosed with breast cancer.

1- What is the risk of breast cancer for women under age 30 years?

2- What is the risk of breast cancer for women age 30 years or older?

3- What is the excess risk of breast cancer in those who had their first child at age 30 or older?

4- Calculate the risk ratio comparing women age 30 years or older to women under the age of 30.

5- Estimate the percentage of the disease among the exposed that is attributed to the exposure.

6- Suppose eight workers died because of exposure to a toxic chemical. What is the average YPLL for these workers, given their ages at death were 22, 25, 25, 35, 40, 48, 49, and 62 years. Use age 65 years as the endpoint.

Reference no: EM133295790

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