Question

What information do the following odds ratios tell you?

1) No association between the variables
2) Inverse association between the variables
3) Positive association between the variables

Answer 1

The odds ratio tells us about the association between two variables. A ratio of 1 indicates no association, a ratio less than 1 indicates an inverse association, and a ratio greater than 1 indicates a positive association.

Step-by-step explanation:

The odds ratio is a measure of association between two variables in a case-control study. It tells us the likelihood of an event occurring in one group compared to another group. Here's what the odds ratios in the question tell us:

1. No association between the variables: An odds ratio of 1 indicates that there is no difference in risk between the two groups. The incidence is approximately equal in both groups, suggesting no relationship between the variables.
2. Inverse association between the variables: An odds ratio less than 1 suggests a lower risk in one group compared to another. This indicates an inverse or negative association between the variables, meaning that as one variable increases, the other variable decreases.
3. Positive association between the variables: An odds ratio greater than 1 suggests a higher risk in one group compared to another. This indicates a positive association between the variables, meaning that as one variable increases, the other variable also increases.