Frequencies for first 10,000 rows of cardenz variable in nhamcsed2014 dataset :

    Cardiac |
    enzymes |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,447       94.47       94.47
        Yes |        553        5.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017