Frequencies for psi_4_surg_comp_worse variable in vwhqi_hosp_ahrq_state dataset :

PSI_4_SURG_ |
 COMP_WORSE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         20       35.71       35.71
          1 |         13       23.21       58.93
          2 |          5        8.93       67.86
          3 |          2        3.57       71.43
          4 |          5        8.93       80.36
          5 |          4        7.14       87.50
         12 |          1        1.79       89.29
          . |          6       10.71      100.00
------------+-----------------------------------
      Total |         56      100.00

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