Frequencies for psi_15_acc_lac variable in vwhqi_hosp_ahrq dataset :

                      PSI_15_ACC_LAC |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                       Not Available |          3        0.07        0.07
      Better than U.S. National Rate |        154        3.35        3.42
No Different than U.S. National Rate |      2,929       63.76       67.17
                       Not Available |      1,259       27.41       94.58
           Number of Cases Too Small |         16        0.35       94.93
       Worse than U.S. National Rate |        233        5.07      100.00
-------------------------------------+-----------------------------------
                               Total |      4,594      100.00

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