Frequencies for DI_COPD_CARD_RESP_FAIL variable in hcccoefn dataset :

DI_COPD_CAR |
D_RESP_FAIL |      Freq.     Percent        Cum.
------------+-----------------------------------
       .013 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

by Jean Roth , jroth@nber.org , 23 Mar 2017