Odds ratio vs relative risk Odds ratios and relative risks are interpreted in much the same way and if and are much less than and then the odds ratio will be almost the same as the relative risk In some sense the relative risk is a more intuitive measure of effect size Note that the choice is only for prospective studies were the distinctionOdds = Probability / (1probability) Odds ratio (OR) = ratio of odds of event occurring in exposed vs unexposed group Odds ratio are used to estimate how strongly a variable is associated with the outcome of interest;In a control group The odds ratio (OR) is the odds of an event in an experimental group relative to that in a control group An RR or OR of 100 indicates that the risk is comparable in the two groups A value greater than 100 indicates increased risk;
A Beginner S Guide To Interpreting Odds Ratios Confidence Intervals And P Values Students 4 Best Evidence
