Frequencies for ins_copd_card_resp_fail variable in hcccoefn dataset :

ins_copd_ca |
rd_resp_fai |
          l |      Freq.     Percent        Cum.
------------+-----------------------------------
       .506 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

by Jean Roth , jroth@nber.org , 2 May 2016