Frequencies for psi_11_postop_respfail_bestr variable in vwhqi_hosp_ahrq_state dataset :

PSI_11_POSTOP |
_RESPFAIL_BET |
          TER |      Freq.     Percent        Cum.
--------------+-----------------------------------
            0 |          5        8.93        8.93
            1 |          8       14.29       23.21
           10 |          1        1.79       25.00
           13 |          1        1.79       26.79
            2 |          6       10.71       37.50
           29 |          1        1.79       39.29
            3 |          8       14.29       53.57
            4 |          6       10.71       64.29
            5 |          7       12.50       76.79
            6 |          4        7.14       83.93
            7 |          2        3.57       87.50
            8 |          1        1.79       89.29
Not Available |          6       10.71      100.00
--------------+-----------------------------------
        Total |         56      100.00

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