yes, I see now that if I run the sex x age tabulation separately with pctn<age> the percents are correct but when this is included along with sex and age in the table the percents do not work, even though I am using     tables sex age sex*age, all*(n pctn < sex age age>).  (does not calculate denom. correctly for sex x age) tables sex*age,all*(n pctn<age>) does calculate denom correctly. weird. guess if I'm determined to have all vars in the same table statement I'll have to replace the SEX  x AGE term with a newly derived SEXAGE var. thanks again Julia ... View more