The basic difference is that the odds ratio is a ratio of two odds (yep, it's that obvious) whereas the relative risk is a ratio of two probabilities (The relative risk is also called the risk ratio) Let's look at an example Relative Risk/Risk Ratio Suppose you have a school that wants to test out a new tutoring programThe relative risk (RR) and the odds ratio (OR) are the two most widely used measures of association in epidemiology The direct computation of relative risks isRelative Risk, Odds, and Fisher's exact test I) Relative Risk A) Simply, relative risk is the ratio of p 1/p 2 For instance, suppose we wanted to take another look at our Seat belt safety data from Florida Safety equipment Injury in use Fatal Nonfatal Total None 1,601 165,527 167,128 Seat belt 510 412,368 412,878
Odds Ratio Relative Risk Calculation Definition Probability Odds Youtube
