Frequencies for first 10,000 rows of bloodcx variable in nhamcsed2010 dataset :

      Blood |
    culture |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,498       94.98       94.98
        yes |        502        5.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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