Frequencies for first 10,000 rows of ncmed2 variable in nhamcsopd2011 dataset :

      Was medication 2 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        Blank |        144        1.44        1.44
               Not applicable |      5,020       50.20       51.64
                          New |      1,199       11.99       63.63
                    Continued |      3,637       36.37      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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