Frequencies for first 10,000 rows of ncmed4 variable in nhamcsopd2008 dataset :

      was medication 4 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        blank |        107        1.07        1.07
               not applicable |      7,291       72.91       73.98
                          new |        500        5.00       78.98
                    continued |      2,102       21.02      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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