1 Reply Latest reply: Nov 22, 2017 3:33 PM by GE US Enterprise Solutions RSS

    Set analysis help needed

    GE US Enterprise Solutions



      I am working on a set analysis expression and have been struggling with the last piece.

      I appreciate all help.
















      Existing expression correctly identifies all patients who had both 'XR' and 'CT'. I need to further modify it, so that it only looks for patients who had a XR, within 40 days prior to the CT.

      I have a field, ScanStart, that tells me when the scan took place.