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

    Is this |
      visit |
 related to |
    injury, |
  poisoning |
 or adverse |
  effect of |
    medical |
   treatmen |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      6,502       65.02       65.02
        yes |      3,498       34.98      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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