question archive Data extracted from a regional cancer registry was used to investigate the extent to which smoking increases the risk of breast cancer

Data extracted from a regional cancer registry was used to investigate the extent to which smoking increases the risk of breast cancer

Subject:Health SciencePrice: Bought3

Data extracted from a regional cancer registry was used to investigate the extent

to which smoking increases the risk of breast cancer. The cumulative incidence

of breast cancer was estimated to be 700 cases of breast cancer per 100,000

population for current smokers and 500 cases of breast cancer per 100,000

among never smokers. The overall incidence of breast cancer in the regional

population was estimated to be 562 cases per 100,000.

 

(A)

What is the relative risk of breast cancer for a current smoker compared

with a non-smoker? Interpret this result - i.e. how strong of a risk factor

does smoking appear to be in the development of breast cancer?

(B)

Estimate the population risk difference / attributable risk of breast cancer

in this population. Interpret the meaning of this result.

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