Frequencies for first 10,000 rows of ncmed8 variable in nhamcsopd2006 dataset :

      was medication 8 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                          New |         49        0.49        0.49
                    Continued |        496        4.96        5.45
               Not applicable |      9,420       94.20       99.65
                        Blank |         35        0.35      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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