Summary statistics for percutaneouscoronaryintervention variable in 2001_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
percutaneo~n |      2,070    10.36772    4.291877   3.119199   49.72298

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