Summary statistics for percutaneouscoronaryintervention variable in 1997_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
percutaneo~n |         52    7.238537    1.521519   3.802267   11.43185

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