5) To evaluate the association between diet soda consumption and type 2 diabetes

Question

5) To evaluate the association between diet soda consumption and type 2 diabetes, data were collected on 45-84 vear old men and women who were then followed over time. Among participants who consumed less than 1 serving/ day of diet soda. 150 developed type 2 diabetes in 15,000 years of follow-up. Among participants who consumed 1 or more servings/day of diet soda, 70 developed type 2 diabetes in 3,500 years of follow-up. a) 1 point] What is the estimated rate of type 2 diabetes in people who consume less than 1 serving/day of diet soda? b) What is the estimated rate of type 2 diabetes in people who consume 1 or more servings/day of diet soda? c) What is the relative risk of type 2 diabetes, comparing people who consume 1 or more servings/day of diet soda to those who consume less than 1 serving/day? d) Interpret the summary in part c) [#1 point] What is the risk difference of type 2 diabetes, comparing people who consume 1 or more servings/day of diet soda to those who consume less than 1 serving/day? f) Interpret the summary in part e)

Explanation / Answer

a)Estimated rate= 150/15000 = 1% per year

b)Estimated rate = 70/3500=2% per year

C) Relative risk = 2%/1% = 2

D) People who consume more than 1 serving per day are twice as likely to develop type 2 diabetes than ones who consume less than 1 serving a day.

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