In the following example, we will explore when the odds ratio will approximate the risk ratio. Cohort study A
tutor4helpyou (Not rated)
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4. In the following example, we will explore when the odds ratio will approximate the risk ratio.
Cohort study A:
| Diseased | Not Diseased | Total |
Exposed | 5 | 195 | 200 |
Unexposed | 10 | 790 | 800 |
| 15 | 985 | 1000 |
Calculate the risk ratio.
Calculate the odds ratio.
Does the odds ratio do a good job of approximating the risk ratio?
Cohort study B:
| Diseased | Not Diseased | Total |
Exposed | 100 | 100 | 200 |
Unexposed | 200 | 600 | 800 |
| 300 | 700 | 1000 |
Calculate the risk ratio.
Calculate the odds ratio.
Does the odds ratio do a good job of approximating the risk ratio?
What changed from Cohort A to Cohort B?
When does the OR do a good job of approximating the RR?
11 years ago
In Nairobi, Kenya, a study of mother-to-infant transmission of HIV during breastfeeding was conducted.
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