Frequencies for first 10,000 rows of med variable in namcs2012 dataset :

  Were any medications/immunizations |
  ordered, supplied, administered or |
                          continued? |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
        No medications were reported |      3,161       31.61       31.61
At least one medication was reported |      6,839       68.39      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

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