The death rate per 100,000 for lung cancer is 7 among nonsmokers and 71 among sm
ID: 3046611 • Letter: T
Question
The death rate per 100,000 for lung cancer is 7 among nonsmokers and 71 among smokers. The death rate per 100,000 for coronary thrombosis is 422 among nonsmokers and 599 among smokers. The prevalence of smoking in the population is 55%. What is the RR of dying of lung cancer for smokers versus nonsmokers? What is the RR of dying of coronary thrombosis for smokers versus nonsmokers? What is the etiologic fraction of disease due to smoking among individuals with lung cancer? What is the etiologic fraction of disease due to smoking among individuals with coronary thrombosis? What is the population etiologic fraction of lung cancer due to smoking? What is the population etiologic fraction of coronary thrombosis due to smoking
Explanation / Answer
What is the RR of dying of lung cancer for smokers versus nonsmokers?
The relative risk is calculated by dividing the incidence rate in the exposed by the incidence rate in the non-exposed . Therefore, the incidence rate in the exposed 71, is divided by the non-exposed, 7. 71 / 7= 10.14 for lung cancer.
. What is the RR of dying of coronary thrombosis for smokers versus non-smokers?
The same relative risk formula will be utilized as above, with 599 (exposed, smokers) divided by 422 (non-exposed, non-smokers). 599 / 422 = 1.42.
What is the etiologic fraction of disease due to smoking among individuals with lung cancer?
10.1 for lung cancer and
What is the etiologic fraction of disease due to smoking among individuals with coronary thrombosis?
1.4 for coronary thrombosis.
What is the population etiologic fraction of lung cancer due to smoking?
0.83 for lung cancer and
What is the population etiologic fraction of coronary thrombosis due to smoking
0.18 for coronary thrombosis.
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