Frequencies for first 10,000 rows of ncmed2 variable in nhamcsopd2007 dataset :

      was medication 2 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        blank |        107        1.07        1.07
               not applicable |      5,327       53.27       54.34
                          new |      1,300       13.00       67.34
                    continued |      3,266       32.66      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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