Frequencies for psi_90_safety_worsestr variable in vwhqi_hosp_ahrq_state dataset :

PSI_90_SAFE |
   TY_WORSE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          8       14.29       14.29
          1 |         10       17.86       32.14
         10 |          1        1.79       33.93
         12 |          2        3.57       37.50
         18 |          2        3.57       41.07
          2 |         10       17.86       58.93
          3 |          4        7.14       66.07
          4 |          4        7.14       73.21
          5 |          2        3.57       76.79
          6 |          1        1.79       78.57
          7 |          2        3.57       82.14
          8 |          1        1.79       83.93
          9 |          3        5.36       89.29
        N/A |          6       10.71      100.00
------------+-----------------------------------
      Total |         56      100.00

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