Summary statistics for 1999_surg_discharges_hrr dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   hrrnumber |        307    251.0912    131.2625          1        999
    hrrlabel |          0
medicar~1999 |        307    171204.9     1496917      11803   2.63e+07
allsurgica~i |        307     100.282    10.12761   45.50248    132.179
abdominala~r |        304    .8154413    .6665468  -1.430805   1.754926
-------------+---------------------------------------------------------
backsurger~l |        307    3.589473    1.132981   1.060339   8.318828
coronaryan~a |        307    21.49497    5.654514   7.453744    43.2279
coronaryar~g |        307    6.300821    1.372778    2.96618   11.27543
percutaneo~n |        307    9.194521    3.048473   2.986442   22.68186
carotidend~i |        307    3.536726    1.069017   .8270846   6.970948
-------------+---------------------------------------------------------
cholecyste~n |        307    4.856859    1.000116   2.922376   8.413216
hospitaliz~r |        307    8.311114    .9456083   3.446017   10.90615
hipreplace~r |        307    2.645117    .7221489    .746963   4.899511
kneereplac~n |        307    5.436469    1.303767   1.568254   9.845201
mastect~1000 |        305    1.133601    1.320255  -3.315277   3.285187
-------------+---------------------------------------------------------
resectionf~e |        307    1.923212    .4108281   -1.77202   2.972679
lowerextre~p |        305    1.722709    .6603435  -2.778096   3.536826
transureth~n |        307    6.836845    1.724322   2.729985   12.95416
aorticmitr~1 |        306    1.290334    .5908385   -1.89374   2.525086

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