Frequencies for first 10,000 rows of urinecx variable in nhamcsed2013 dataset :

      Urine |
    culture |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,089       90.89       90.89
        Yes |        911        9.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016