Summary statistics for psi_4_surg_comp_high_est variable in vwhqi_hosp_ahrq dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
psi_4_~h_est |      2,006    152.1068    20.12774      79.59     222.92

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