Frequencies for first 10,000 rows of injr1 variable in nhamcsed2012 dataset :

   Is visit |
 related to |
  injury or |
poisoning - |
  recode #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      7,223       72.23       72.23
        Yes |      2,777       27.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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