Frequencies for first 10,000 rows of refothmd variable in nhamcsed2003 dataset :

  return to |
      other |
physician/c |
  linic for |
   followup |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      5,063       50.63       50.63
        yes |      4,937       49.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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