(B) Optional parameters are those not
selected as row and column variables, but used to restrict output to one
value of a variable.
Back to optional parameters
(C) When Race-Ethnicity, Age, or Gender is selected as a
row or column variable, data will be shown for all values of the variable.
For Year and Birth Defect, specific values must be chosen.
to row and column selection
* Texas Health Data was developed by the Missouri Department
of Health and adapted by the State of Texas. The graphics were developed
using gd by Thomas Boutell and the database by using the GNU database GDBM.