Summary statistics for e4_c1_4 variable in prds_hosp10_yr2012 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     e4_c1_4 |        328    2.342652     28.4769    -165.51     309.24

by Jean Roth , jroth@nber.org , 24 Aug 2018