Summary statistics for backsurgeryper1000medicareenroll variable in 2006_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
backsurger~l |        307    4.684028    1.494796   1.658955   11.00448

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