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

       Does |
patient now |
     have - |
    Chronic |
      renal |
    failure |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,881       98.81       98.81
        Yes |        119        1.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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