Frequencies for ins_schizophrenia_chf variable in hcccoefn dataset :

ins_schizop |
 hrenia_chf |      Freq.     Percent        Cum.
------------+-----------------------------------
       .128 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

by Jean Roth , jroth@nber.org , 7 Feb 2019