# Risk Measurement

Use the drop-down menu to specify the risk measurement to use.

| • | Choose Risk Difference to specify the difference between the risk of an event in the treatment arm and the control arm.

| • | Choose Relative Risk to specify the ratio of the risk of an event in the treatment group to the risk of the same event in the control group.

| • | Choose Odds Ratio to specify the ratio of the odds of an event in the treatment arm to the odds of an event in the control group.