Frequencies for first 10,000 rows of intentr variable in nhamcsed2002 dataset :

               intentionality recode |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
Not applicable (not an injury visit) |      6,492       64.92       64.92
                       Unintentional |      2,161       21.61       86.53
                      Self-inflicted |         31        0.31       86.84
                             Assault |        213        2.13       88.97
                  Legal intervention |         14        0.14       89.11
                      Unknown intent |         12        0.12       89.23
              Adverse medical effect |        115        1.15       90.38
                         Blank cause |        962        9.62      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

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