Frequencies for first 10,000 rows of ncmed8 variable in nhamcsopd2009 dataset :

      was medication 8 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        blank |         19        0.19        0.19
               not applicable |      9,044       90.44       90.63
                          new |         91        0.91       91.54
                    continued |        846        8.46      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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