Frequencies for psi_12_postop_pulmemb_dvt_better variable in vwhqi_hosp_ahrq_state dataset :

PSI_12_POST |
OP_PULMEMB_ |
 DVT_BETTER |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          7       12.50       12.50
          1 |          8       14.29       26.79
          2 |          6       10.71       37.50
          3 |          3        5.36       42.86
          4 |          9       16.07       58.93
          5 |          5        8.93       67.86
          6 |          2        3.57       71.43
          7 |          2        3.57       75.00
          8 |          3        5.36       80.36
          9 |          2        3.57       83.93
         14 |          1        1.79       85.71
         15 |          1        1.79       87.50
         33 |          1        1.79       89.29
          . |          6       10.71      100.00
------------+-----------------------------------
      Total |         56      100.00

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