Frequencies for first 10,000 rows of injpoisadr1 variable in namcs2013 dataset 

                    Is visit related to |
  injury/poisoning/adverse effect? 2012 |
                 format, recoded versio |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                     Yes, injury/trauma |        501        5.01        5.01
Yes, adverse effect of medical treatmen |         34        0.34        5.35
                                    No' |      9,465       94.65      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017