Summary statistics for psi_11_postop_respfail_low_est variable in vwhqi_hosp_ahrq dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
psi_11~w_est |      2,811    3.878702    4.173681          0      25.61

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