Frequencies for first 10,000 rows of med variable in nhamcsed2009 dataset :

       were |
medications |
   given at |
 this visit |
         or |
 prescribed |
      at ed |
 discharge? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      2,098       20.98       20.98
          1 |      7,694       76.94       97.92
          2 |        208        2.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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