Summary statistics for backsurgeryper1000medicareenroll variable in 2002_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
backsurger~l |        307    4.205808    1.387769   1.371534   9.376751

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