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

  Does your |
  ED have a |
 physically |
   separate |
observation |
or clinical |
   decision |
      unit? |      Freq.     Percent        Cum.
------------+-----------------------------------
      Blank |        152        1.52        1.52
    Unknown |        587        5.87        7.39
        Yes |      2,361       23.61       31.00
         No |      6,900       69.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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