Summary statistics for backsurgeryper1000medicareenroll variable in 2002_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
backsurger~l |         52     4.13287    1.352643   1.538705   8.785452

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