Frequencies for first 10,000 rows of injpoisadr2 variable in nhamcsed2012 dataset :

  Is visit related to injury, poisoning |
or adverse effect of medical treatment? |
                                     -  |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                     Yes, injury/trauma |      2,814       28.14       28.14
                         Yes, poisoning |        111        1.11       29.25
Yes, adverse effect of medical treatmen |        212        2.12       31.37
No, visit is not related to injury, poi |      6,863       68.63      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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