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

         Is visit related to any of the |
                             following? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                  Blank |        403        4.03        4.03
                                Unknown |        494        4.94        8.97
          Intentionality does not apply |        240        2.40       11.37
         Unintentional injury/poisoning |      2,203       22.03       33.40
           Intentional injury/poisoning |        195        1.95       35.35
Injury/poisoning of undetermined intent |        231        2.31       37.66
    Adverse effect of medical treatment |        221        2.21       39.87
Visit is not related to injury/poisonin |      5,984       59.84       99.71
             Questionable injury status |         29        0.29      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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