from: http://www.datasavantconsulting.com/roland/spectre/winusers.html

%npcttab and %unistats as "standard macros"

If you use these macros, then you might think they are limited to the layout of the reports they give and the p-values they can calculate. But that is not the case. The macros are designed to be completely flexible and are intended for use by any and all pharmaceutical companies and CROs. Neither of these macros are tied to a report layout style. %unistats does not produce a report by default and the report capability of %npcttab can be disabled using print=no and they will give you output datasets that you are free to present in any style you wish. If you require p-values these macros can not currently give then you can calculate them yourself in your code and merge these p-values in with the output datasets and then produce a report in any required layout style. Bearing in mind that these two macros will run on any platform and are free to anybody to download and use, then perhaps they are the first macros ever released with a claim to being called "standard macros" for safety reporting across the pharmaceutical industry.

main page: http://www.datasavantconsulting.com/roland/spectre/