Frequencies for first 10,000 rows of med variable in nhamcsopd2001 dataset :

       were |
medications |
/injections |
ordered/pro |
     vided? |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      4,156       41.56       41.56
        Yes |      5,844       58.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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