Frequencies for first 10,000 rows of admithos variable in nhamcsopd2006 dataset :

   admit to |
   hospital |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,956       99.56       99.56
        Yes |         44        0.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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