Summary statistics for psi_12_postop_pulmemb_dvt_low_es variable in vwhqi_hosp_ahrq dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
psi_12_pos~s |      3,112     1.57393    2.031972          0      18.11

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