Frequencies for first 10,000 rows of intentr variable in nhamcsed2011 dataset :

   Intentionality of Injury |
  (Recoded based on CAUSE1) |      Freq.     Percent        Cum.
----------------------------+-----------------------------------
                      Blank |        565        5.65        5.65
             Not applicable |      6,499       64.99       70.64
              Unintentional |      2,585       25.85       96.49
             Self-inflicted |         62        0.62       97.11
                    Assault |        119        1.19       98.30
         Legal intervention |          7        0.07       98.37
             Unknown intent |         38        0.38       98.75
     Adverse medical effect |        125        1.25      100.00
----------------------------+-----------------------------------
                      Total |     10,000      100.00

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