Frequencies for first 10,000 rows of obsunit variable in nhamcsed2007 dataset :

  does your |
 ed have an |
observation |
or clinical |
   decision |
      unit? |      Freq.     Percent        Cum.
------------+-----------------------------------
      blank |        103        1.03        1.03
    unknown |        334        3.34        4.37
        yes |      3,999       39.99       44.36
         no |      5,564       55.64      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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