Frequencies for first 10,000 rows of ncmed5 variable in nhamcsopd2007 dataset :

      was medication 5 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        blank |         85        0.85        0.85
               not applicable |      8,066       80.66       81.51
                          new |        200        2.00       83.51
                    continued |      1,649       16.49      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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