A study is done to compare side effects for two different drugs used to treat a medical condition. One hundred people are given each drug. Results are as shown in the following table:
|
|
Headache?
|
Nausea?
|
|
|
Yes
|
No
|
Yes
|
No
|
|
Drug 1
|
10
|
90
|
15
|
85
|
|
Drug 2
|
5
|
95
|
5
|
95
|
For the headache side effect, compute each of the following.
a. The risk of experiencing a headache for each drug (separately).
b. The relative risk of a headache for Drug 1 compared to Drug 2.
c. The percent increase in the risk of a headache for Drug 1 compared to Drug 2.
d. The odds ratio for comparing the odds of a headache for Drug 1 compared to Drug 2.