Frequencies for first 10,000 rows of ncmed3 variable in nhamcsopd2009 dataset :

      was medication 3 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        blank |        101        1.01        1.01
               not applicable |      6,389       63.89       64.90
                          new |        729        7.29       72.19
                    continued |      2,781       27.81      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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