Frequencies for first 10,000 rows of refothmd variable in nhamcsed2002 dataset :

  return to |
      other |
physician/c |
  linic for |
   followup |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,468       54.68       54.68
          1 |      4,532       45.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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