Frequencies for psi_11_postop_respfail_fstr variable in vwhqi_hosp_ahrq dataset :

PSI_11_POST |
OP_RESPFAIL |
         _F |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,848       61.99       61.99
          4 |          9        0.20       62.19
          5 |      1,531       33.33       95.52
          j |        206        4.48      100.00
------------+-----------------------------------
      Total |      4,594      100.00

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