Frequencies for first 10,000 rows of injdet variable in namcs2010 dataset :

 is visit related to inj/poison/adverse |
                                effect? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
         unintentional injury/poisoning |        447        4.47        4.47
           intentional injury/poisoning |         17        0.17        4.64
      injury/poisoning - unknown intent |        255        2.55        7.19
adv effect of med/surg care/medicinal d |         66        0.66        7.85
                      none of the above |      9,215       92.15      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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