# Offset (in Days) to Include with End Date Variable

Use this option to specify the number of days after the last date of study or exposure for calculation of patient time at risk and adverse event variable inclusion.

For example, if you specify 30 days as the offset, 30 days is added to the end date day to calculate risk for experiencing adverse events.

Note: This option is not available unless the Calculate Incidence Rates for adverse event occurrences box is checked.

### To Specify an Offset:

| 8 | Make sure the Calculate Incidence Rates for adverse event occurrences box is checked.

| 8 | Either enter the desired value in the text field or move the slider to the right or to the left to change the value.

Tip: To change the scale of the slider, right-click on the slider and select
from the pop-up menu. Change the upper or lower boundaries in the that appears, to rescale the slider and click
.