Frequencies for first 10,000 rows of hgba variable in nhamcsopd2003 dataset :

     hgba1c |
(glycohemog |
     lobin) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,622       96.22       96.22
          1 |        378        3.78      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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