Frequencies for first 10,000 rows of gpmed2 variable in nhamcsed2011 dataset :

      Given in ED or Rx at discharge |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                               Blank |         91        0.91        0.91
Not applicable, no medication listed |      4,805       48.05       48.96
                        Given in  ED |      2,814       28.14       77.10
                     RX at discharge |      1,648       16.48       93.58
            Both given and RX marked |        642        6.42      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

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