Frequencies for psi_11_postop_respfail_better 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
          2 |          9       16.07       46.43
          3 |          4        7.14       53.57
          4 |          6       10.71       64.29
          5 |          6       10.71       75.00
          6 |          4        7.14       82.14
          7 |          1        1.79       83.93
         11 |          1        1.79       85.71
         19 |          1        1.79       87.50
         27 |          1        1.79       89.29
          . |          6       10.71      100.00
------------+-----------------------------------
      Total |         56      100.00

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