Frequencies for first 10,000 rows of gpmed4 variable in nhamcsed2006 dataset :

   med 4 given in ed or rx at discharge |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
             medication was given in ed |        658        6.58        6.58
medication was prescribed (rx) at disch |        492        4.92       11.50
medication was both given in ed and rx  |         38        0.38       11.88
                 na (no drug mentioned) |      8,771       87.71       99.59
                                  blank |         41        0.41      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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