Summary statistics for percutaneouscoronaryintervention variable in 1993_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
percutaneo~n |        307    5.184404    1.915854   1.810474   13.02892

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