Frequencies for first 10,000 rows of ncmed7 variable in nhamcsopd2010 dataset :

      was medication 7 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        blank |         39        0.39        0.39
               not applicable |      8,600       86.00       86.39
                          new |        188        1.88       88.27
                    continued |      1,173       11.73      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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