Frequencies for first 10,000 rows of ncmed2 variable in nhamcsopd2010 dataset :

      was medication 2 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        blank |        130        1.30        1.30
               not applicable |      4,803       48.03       49.33
                          new |      1,638       16.38       65.71
                    continued |      3,429       34.29      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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