Quantitative Methods 2017

What is a RR of 1.20?

1. Probability of disease (or event) is increased by 120% after exposure

2. Probability of exposure in disease group is increased by 20%

3. Probability of disease (or event) is decreased by 20% after exposure

4. Probability of disease (or event) is increased by 20% in exposed relative to non exposed

FMB