Odds ratios deconstructed: A new way to understand and explain odds ratios as conditional risk ratios

OBJECTIVES: The aim of this analysis was to provide an alternative derivation of the odds ratio (OR) to provide an intuitive meaning, freeing it from any mention of odds, which may make it a more useful concept for clinicians to use when describing treatment effect. STUDY DESIGN AND SETTING: By examining the four possible combinations of treatment/control and corresponding outcomes, we considered the conditional risk ratio (RR, also known as …