Frequencies for first 10,000 rows of med variable in nhamcsed2001 dataset :

       were |
medications |
/injections |
ordered/pro |
     vided? |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      2,560       25.60       25.60
        Yes |      7,440       74.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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