Frequencies for first 10,000 rows of bloodcx variable in nhamcsed2015 dataset :

      Blood |
    culture |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,709       97.09       97.09
        Yes |        291        2.91      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017