Frequencies for first 10,000 rows of injdetr2 variable in namcs2011 dataset :

         Is visit related to any of the |
          following? Recoded version #2 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
         Unintentional injury/poisoning |        401        4.01        4.01
           Intentional injury/poisoning |          9        0.09        4.10
      Injury/poisoning - unknown intent |        250        2.50        6.60
Adv effect of med/surg care/medicinal d |        102        1.02        7.62
                      None of the above |      9,238       92.38      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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