Frequencies for first 10,000 rows of injpoisadr2 variable in nhamcsed2013 dataset :

  Is visit related to injury, poisoning |
or adverse effect of medical treatment? |
                                     -  |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                     Yes, injury/trauma |      2,664       26.64       26.64
                         Yes, poisoning |         85        0.85       27.49
Yes, adverse effect of medical treatmen |        195        1.95       29.44
No, visit is not related to injury, poi |      7,056       70.56      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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