Summary statistics for aorticmitralvalvereplacementper1 variable in 1997_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
aorticmitr~1 |        306    1.185689    .5820164  -1.641034   2.332016

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