Summary statistics for INS_COPD_ASP_SPEC_BACT_PNEUM variable in hcccoefn dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
INS_COPD_A~M |          1        .319           .       .319       .319

by Jean Roth , jroth@nber.org , 23 Mar 2017