Card 8 / 11: The following information is for Questions 6?-7 The 1 year risk (i.e. annual incidence) of lung cancer in smokers is 140 per 100,000. The 1 year risk of lung cancer in non?-smokers of the general population is 10 per 100,000. Smoking in bars was banned, in part, because of epidemiologic evidence of ill?-effects of second hand smoke on food service workers. non?-smoking food service workers have a 50% higher risk of lung cancer than non?-smokers of the general population.What is the estimated annual incidence rate of lung cancer in non?-smoking food service workers?
Answer:
If the incidence rate of lung cancer in non?-smokers is 10 per 100,000 at risk per year, and food service workers have a 50% higher rate than this, then food service workers have an annual rate of lung cancer of 15 per 100,000 at risk.
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Epidemiology & Biostatistics Cohort Studies
Author:
Dr.Janet ForresterProfessor
Tufts University School of Medicine
USA
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