Frequencies for first 10,000 rows of woundcx variable in nhamcsed2011 dataset :

      Wound |
    culture |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,887       98.87       98.87
        Yes |        113        1.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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