Summary statistics for psi_12_postop_pulmemb_dvt_better variable in vwhqi_hosp_ahrq_state dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
psi_12_po~er |         50         4.4    5.333758          0         33

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