Frequencies for first 10,000 rows of gpmed3 variable in nhamcsed2010 dataset :

      Given in ED or RX at discharge |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                               blank |         56        0.56        0.56
not applicable, no medication listed |      6,621       66.21       66.77
                        given in  ed |      2,008       20.08       86.85
                     rx at discharge |      1,102       11.02       97.87
            both given and rx marked |        213        2.13      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

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