Effect Estimate or Direction Variable is the odds ratio

Check this box if the Effects Estimate or Direction Variable is the odds ratio. If the odds ration is in the logarithm scale, leave this option unchecked. The default null hypothesis of the effect estimate or direction variable is zero.

When the effect estimate or direction variable is the odds ratio, the correct null hypothesis is the unit. Therefore, by checking this option the odds ratio hypothesis test will be appropriately carried out.