Frequencies for first 10,000 rows of boardhos variable in nhamcsed2010 dataset :

  If the ED |
         is |
 critically |
overloaded, |
        are |
admitted ED |
  pats ever |
  'boarded' |
   in inpat |      Freq.     Percent        Cum.
------------+-----------------------------------
    unknown |        229        2.29        2.29
        yes |      2,890       28.90       31.19
         no |      6,881       68.81      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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