Summary statistics for cholecystectomyper1000medicareen variable in 2002_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
cholecyste~n |        307    4.668753     1.03484   2.647457    8.13502

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