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The prevalence of smoking in this population: The prevalence of smoking based on whether or not...

The prevalence of smoking in this population:

The prevalence of smoking based on whether or not someone has Parkinson’s:

What is the risk ratio for persons with Parkinson’s? .30/.55= .545

What is the odds ratio for person’s with Parkinson’s

Controls

Parkinson’s Cases

Smokers

55

30

Non smokers

45

70

            Odds for Parkinson’s cases:

            Odds for Controls:

            Odds ratio:

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Answer #1

odds for parkinsons CASES: 0.4286 30 70 odds for controls - 55 45 12222 0.4286 odds ratio= 0.3507 1.2222 Odds of exposure am

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