Summary statistics for backsurgeryper1000medicareenroll variable in 1993_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
backsurger~l |        307    2.613107    .8755367   .9082518   6.609023

by Jean Roth , jroth@nber.org , 14 Mar 2018