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

       Does |
    patient |
      have: |
   Coronary |
     artery |
    disease |
     (CAD), |
   ischemic |
      heart |
    disease |
    (IHD) o |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,517       95.17       95.17
        Yes |        483        4.83      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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