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An individual is a fifty-year-old smoker that lives in a highly polluted city, gets no exercise, eats fast food every day, and has a family history of lung cancer. Which of the following is an uncontrollable risk factor?

User Tyga
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2 Answers

3 votes
Him living in a polluted city is an uncontrollable risk factor.
User Mhnagaoka
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The uncontrollable risk factor is his family's history. He can not smoke, he can move to a less polluted area, he can eat other things, but he can't change his heritage. 
User Rad Haring
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