Summary statistics for backsurgeryper1000medicareenroll variable in 2006_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
backsurger~l |      2,208    .1015985    5.417369  -32.46941    13.3713

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