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

   admit to |
    icu/ccu |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,903       99.03       99.03
          1 |         97        0.97      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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