Frequencies for first 10,000 rows of injpoisadr1 variable in namcs2012 dataset :

                    Is visit related to |
  injury/poisoning/adverse effect? 2012 |
                 format, recoded versio |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                     Yes, injury/trauma |        494        4.94        4.94
                         Yes, poisoning |          7        0.07        5.01
Yes, adverse effect of medical treatmen |         58        0.58        5.59
                                     No |      9,441       94.41      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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