Frequencies for first 10,000 rows of gpmed4 variable in nhamcsed2005 dataset :

   med 4 given in ed or rx at discharge |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
             medication was given in ed |        708        7.08        7.08
medication was prescribed (rx) at disch |        578        5.78       12.86
medication was both given in ed and rx  |         87        0.87       13.73
                 na (no drug mentioned) |      8,557       85.57       99.30
                                  blank |         70        0.70      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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