Frequencies for psi_11_postop_respfail_bestr variable in vwhqi_hosp_ahrq_state dataset :

PSI_11_POST |
OP_RESPFAIL |
    _BETTER |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          7       12.50       12.50
          1 |         10       17.86       30.36
         11 |          1        1.79       32.14
         19 |          1        1.79       33.93
          2 |          9       16.07       50.00
         27 |          1        1.79       51.79
          3 |          4        7.14       58.93
          4 |          6       10.71       69.64
          5 |          6       10.71       80.36
          6 |          4        7.14       87.50
          7 |          1        1.79       89.29
        N/A |          6       10.71      100.00
------------+-----------------------------------
      Total |         56      100.00

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