Answered
Which of the following statements is the most accurate description of the risk and relative risk of lung cancer deaths in this study? Use the following information: Lung Cancer and Coronary Health Disease Mortality by Smoking Status
Age-adjusted death rates per 100,000\text { Age-adjusted death rates per } 100,000 Age-adjusted death rates per 100,000
Smokers Nonsmokers Lung cancer 15070 Coronary heart disease 700300\begin{array}{|l|l|l|}\hline & \text { Smokers } & \text { Nonsmokers } \\\hline \text { Lung cancer } & 150 & 70 \\\hline \text { Coronary heart disease } & 700 & 300 \\\hline\end{array} Lung cancer Coronary heart disease Smokers 150700 Nonsmokers 70300
[Modified from Doll R,Peto R.Mortality in relation to smoking: 20 years' observations on male British doctors.Br Med J.1976;2(6051) :1525-1536.]
A) The risk of lung cancer deaths is 2.1 times greater in smokers compared with nonsmokers.
B) The risk of lung cancer deaths is 2.1 times less in smokers compared with nonsmokers.
C) Because investigators followed up participants over 20 years, deaths rate cannot be used as a risk.
D) The risk of lung cancer deaths among smokers is 70 per 100,000.
E) The risk of lung cancer deaths among nonsmokers is 150 per 100,000.
On May 26, 2024