Frequencies for psi_6_iat_ptx_betterstr variable in vwhqi_hosp_ahrq_state datas

PSI_6_IAT_PTX |
      _BETTER |      Freq.     Percent        Cum.
--------------+-----------------------------------
            0 |         42       75.00       75.00
            1 |          7       12.50       87.50
            2 |          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