Frequencies for first 10,000 rows of htn variable in namcs2006 dataset :

       does |
patient now |
     have - |
hypertensio |
          n |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      7,642       76.42       76.42
        yes |      2,358       23.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016