Frequencies for first 10,000 rows of ncmed5 variable in nhamcsopd2005 dataset :

      was medication 5 new or |
                   continued? |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                          new |        232        2.32        2.32
                    continued |        917        9.17       11.49
               not applicable |      8,811       88.11       99.60
                        blank |         40        0.40      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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