Frequencies for first 10,000 rows of gpmed7 variable in nhamcsed2010 dataset :

      Given in ED or RX at discharge |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                               blank |         12        0.12        0.12
not applicable, no medication listed |      9,681       96.81       96.93
                        given in  ed |        173        1.73       98.66
                     rx at discharge |        127        1.27       99.93
            both given and rx marked |          7        0.07      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

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