Summary statistics for percutaneouscoronaryintervention variable in 1997_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
percutaneo~n |        307    7.748519    2.659215   2.403958   20.83767

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