A macro has been created for use in the statistical program SAS. You can find the zip file with everything you need here:
Ensure you keep all the files in the zip folder together and follow the help file included.
Note the SAS macro was recently updated to be consistent with the updated look-up tables (April 2013).
Click here for information about applicability of GLI-2012 equations (indices, age range, ethnicity, countries covered) or here for validation studies of the GLI-2012 equations and impact if implementation on clinical interpretation of measurements.