Frequencies for first 10,000 rows of boardhos variable in nhamcsed2012 dataset :

   If ED is |
 critically |
overloaded, |
        are |
admitted ED |
   patients |
       ever |
  'boarded' |
   in inpat |      Freq.     Percent        Cum.
------------+-----------------------------------
      Blank |        152        1.52        1.52
    Unknown |        296        2.96        4.48
        Yes |      2,246       22.46       26.94
         No |      7,306       73.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016