Frequencies for psi_12_postop_pulmemb_dvt_wstr variable in vwhqi_hosp_ahrq_state dataset :

PSI_12_POSTOP |
_PULMEMB_DVT_ |
        WORSE |      Freq.     Percent        Cum.
--------------+-----------------------------------
            0 |         10       17.86       17.86
            1 |         11       19.64       37.50
           11 |          1        1.79       39.29
           12 |          1        1.79       41.07
           14 |          1        1.79       42.86
           16 |          1        1.79       44.64
           19 |          1        1.79       46.43
            2 |          8       14.29       60.71
           21 |          1        1.79       62.50
           23 |          1        1.79       64.29
           27 |          1        1.79       66.07
            3 |          6       10.71       76.79
            4 |          3        5.36       82.14
            5 |          1        1.79       83.93
            6 |          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