Frequencies for first 10,000 rows of senbefor variable in namcs2012 dataset :

   Has this patient been |
   seen in your practice |
                 before? |      Freq.     Percent        Cum.
-------------------------+-----------------------------------
Yes, established patient |      8,207       82.07       82.07
         No, new patient |      1,793       17.93      100.00
-------------------------+-----------------------------------
                   Total |     10,000      100.00

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