Frequencies for first 10,000 rows of ncmed1 variable in nhamcsopd2005 dataset :

      was medication 1 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                          new |      2,896       28.96       28.96
                    continued |      3,546       35.46       64.42
               not applicable |      3,296       32.96       97.38
                        blank |        262        2.62      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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