Frequencies for first 10,000 rows of med variable in nhamcsopd2002 dataset :

       were |
medications |
/injections |
ordered/pro |
     vided? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,380       43.80       43.80
          1 |      5,620       56.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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