Frequencies for first 10,000 rows of gpmed4 variable in nhamcsed2011 dataset :

      Given in ED or Rx at discharge |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                               Blank |         40        0.40        0.40
Not applicable, no medication listed |      8,354       83.54       83.94
                        Given in  ED |        967        9.67       93.61
                     RX at discharge |        531        5.31       98.92
            Both given and RX marked |        108        1.08      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

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