Frequencies for first 10,000 rows of wound variable in nhamcsed1992 dataset :

 Wound care |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,794       87.94       87.94
          1 |      1,206       12.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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