Summary statistics for percutaneouscoronaryintervention variable in 1998_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
percutaneo~n |      1,788    8.221924    3.379096   1.883222   40.05805

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