Frequencies for psi_90_safety_worsestr variable in vwhqi_hosp_ahrq_state dataset :

PSI_90_SAFETY |
       _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
           14 |          1        1.79       39.29
           15 |          1        1.79       41.07
           18 |          1        1.79       42.86
            2 |          8       14.29       57.14
           23 |          1        1.79       58.93
            3 |          4        7.14       66.07
            4 |          6       10.71       76.79
            5 |          2        3.57       80.36
            6 |          1        1.79       82.14
            7 |          1        1.79       83.93
            8 |          1        1.79       85.71
            9 |          2        3.57       89.29
Not Available |          6       10.71      100.00
--------------+-----------------------------------
        Total |         56      100.00

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