Frequencies for first 10,000 rows of ncmed2 variable in nhamcsopd2008 dataset :

      was medication 2 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        blank |        220        2.20        2.20
               not applicable |      5,024       50.24       52.44
                          new |      1,421       14.21       66.65
                    continued |      3,335       33.35      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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