Summary statistics for a7_3_c11_1 variable in hosp_rollup2552_96_2011 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
  a7_3_c11_1 |          1           1           .          1          1

by Jean Roth , jroth@nber.org , 21 Apr 2018