Using the data provided in the previous question (copied below), calculate the odds ratio between DDT and breast cancer among women 50 or older Age younger than 50 years Age 50 or older DDT exposure level Cases Controls Cases Controls High lexposed) 50 300 450 300 Low (nonexposed) 450 2.700 1.050 700 Total 500 3,000 1,500 1,000 D0 B2 154 132 2 pts Questions 33-35 use the following information. The following data are from a prospective cohort study that examined the relationship between smoking and incidence of both myocardial infarction (heart attack) and breast cancer among women. Note: this is not the typical 2x2 table, just read the table carefully Disease Myocardial infarction Breast cancer Disease Incidence per 1000 Persons per Year Smokers Nonsmokers 100 80 40 16 What is the attributable risk proportion of breast cancer among smokers? ON SON 20% 40% BOX Question 34 2 pts The following data are from a prospective cohort study that examined the relationship between smoking and incidence of both myocardial infarction (heart attack) and breast cancer among women. Note: this is not the typical 2x2 table, just read the table carefully Disease Myocardial infarction Breast cancer Disease Incidence per 1000 Persons per Year Smokers Nonsmokers 100 80 40 16 What is the estimated relative risk for the association between smoking and myocardial infarction)? 0.5 Cannot be calculated because the non-diseased numbers are not given 2.0 1.0 13 Question 35 2 pts The following data are from a prospective cohort study that examined the relationship between smoking and incidence of both. myocardial infarction (heart attack) and breast cancer among women. Note: this is not the typical 2x2 table, just read the table carefully. Disease Myocardial infarction Breast cancer Disease Incidence per 1000 Persons per Year Smokers Nonsmokers 100 80 40 16 If the proportion of smokers in this population is 30%, what is the population attributable risk proportion of breast cancer due to smoking? 80% 43% 31% 28% 56% Using the data provided in the previous question (copied below), calculate the odds ratio between DDT and breast cancer among women 50 or older Age younger than 50 years Age 50 or older DDT exposure level Cases Controls Cases Controls High lexposed) 50 300 450 300 Low (nonexposed) 450 2.700 1.050 700 Total 500 3,000 1,500 1,000 D0 B2 154 132 2 pts Questions 33-35 use the following information. The following data are from a prospective cohort study that examined the relationship between smoking and incidence of both myocardial infarction (heart attack) and breast cancer among women. Note: this is not the typical 2x2 table, just read the table carefully Disease Myocardial infarction Breast cancer Disease Incidence per 1000 Persons per Year Smokers Nonsmokers 100 80 40 16 What is the attributable risk proportion of breast cancer among smokers? ON SON 20% 40% BOX Question 34 2 pts The following data are from a prospective cohort study that examined the relationship between smoking and incidence of both myocardial infarction (heart attack) and breast cancer among women. Note: this is not the typical 2x2 table, just read the table carefully Disease Myocardial infarction Breast cancer Disease Incidence per 1000 Persons per Year Smokers Nonsmokers 100 80 40 16 What is the estimated relative risk for the association between smoking and myocardial infarction)? 0.5 Cannot be calculated because the non-diseased numbers are not given 2.0 1.0 13 Question 35 2 pts The following data are from a prospective cohort study that examined the relationship between smoking and incidence of both. myocardial infarction (heart attack) and breast cancer among women. Note: this is not the typical 2x2 table, just read the table carefully. Disease Myocardial infarction Breast cancer Disease Incidence per 1000 Persons per Year Smokers Nonsmokers 100 80 40 16 If the proportion of smokers in this population is 30%, what is the population attributable risk proportion of breast cancer due to smoking? 80% 43% 31% 28% 56%