Frequencies for first 10,000 rows of leftatri variable in nhamcsed2011 dataset :

 Left after |
     triage |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,906       99.06       99.06
        Yes |         94        0.94      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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