A study is done to compare side effects for two different drugs used to treat a

Question

A study is done to compare side effects for two different drugs used to treat a medical condition.

Results are shown in the following table:

Nausea?

Drug Yes No

Drug 1 41 86

Drug 2 25 62

1. Find the risk of experiencing a nausea for Drug 1.

2. Find the risk of experiencing a nausea for Drug 2.

3. What is the relative risk of a nausea for Drug 1 compared to Drug 2?

4. What is the percent increase in the risk of a nausea for Drug 1 compared to Drug 2?

5.What is the odds ratio for comparing the odds of a nausea for Drug 1 compared to Drug 2?

Explanation / Answer

a) risk of experiencing a nausea for Drug 1.= 41/(41+86) = 32.28%

b) risk of experiencing a nausea for Drug 2.= 25/(25+62) = 28.74%

c)  relative risk of a nausea for Drug 1 compared to Drug 2 = 32.28%/28.74% = 1.12

d) (0.3228-0.2874)/0.2874) = 12.32%

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