Frequencies for psi_4_surg_comp_fstr variable in vwhqi_hosp_ahrq dataset :

PSI_4_SURG_ |
     COMP_F |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,920       42.50       42.50
          5 |      1,618       35.81       78.31
          j |        980       21.69      100.00
------------+-----------------------------------
      Total |      4,518      100.00

by Jean Roth , jroth@nber.org , 16 Nov 2016