Question

8. You conduct a study and obtain an OR of 1.5 and a 95% confidence interval of 0.85 – 1.85. What does this mean?

Answer 1

Odds Ratio:

An odds ratio (OR) is a measure of association between an exposure and an outcome. The OR represents the odds that an outcome will occur given a particular exposure, compared to the odds of the outcome occurring in the absence of that exposure.

If OR>1, it means , Exposure associated with higher odds of outcome

OR=1.5, means that it is 1.5 times likely the event to occur in the presence of the exposure than in the absence of it.

95% CI of 0.85-1.85 , means that there is a 95% chance that the true OR will likely to be fall within 0.85-1.85.