Frequencies for first 10,000 rows of ncmed3 variable in nhamcsopd2011 dataset :

      Was medication 3 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                        Blank |        112        1.12        1.12
               Not applicable |      6,344       63.44       64.56
                          New |        690        6.90       71.46
                    Continued |      2,854       28.54      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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