our example from the first section where we selected Modality
for the Vertical Axis and Gender for the Horizontal Axis, we now
add the default logic from this section of the form. The
combination will yield the table shown below. Notice how
the displayed Gender
values include "UNK" or Unknown values.
This occurs because
Gender was not used as criteria for this query example.
The query simply called for prevalent patients for 2000, regardless
of any other criteria. Thus, the data returned includes
ALL records matching that criteria.