Frequencies for first 10,000 rows of advtriag variable in nhamcsed2013 dataset :

Does ED use |
   advanced |
     triage |
(triage-bas |
   ed care) |
 protocols? |      Freq.     Percent        Cum.
------------+-----------------------------------
      Blank |         98        0.98        0.98
    Unknown |      1,105       11.05       12.03
        Yes |      7,676       76.76       88.79
         No |      1,121       11.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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