A national survey is conducted to assess the association between
hypertension and stroke in persons over 75 years of age with a
family history of stroke. Development of stroke is monitored over a
5-year follow-up period. The data are summarized here and the
numbers are in millions.
|
Developed Stroke |
Did Not Develop Stroke |
|
|
Hypertension |
12 |
37 |
|
No Hypertension |
4 |
26 |
1.) Compute the odds ratio of stroke in hypertensive as compared to non-hypertensive persons.
Solution:-
=> the odds ratio of stroke in hypertensive as compared to non-hypertensive persons =
-> (12/37)/(4/26)
= 0.3243/0.1538
= 2.1086
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