Summary statistics for 2008_10_surg_discharges_hsa dataset : by Jean Roth , jroth@nber.org , 14 Mar 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- hsanumber | 3,437 26325.03 14845.04 1001 99999 hsalabel | 0 medic~200810 | 3,437 48634.85 1425844 323 8.36e+07 allsurgica~i | 3,437 94.38975 12.55225 35.83 156.75 abdominala~r | 1,767 -.1871138 1.102635 -2.89 1.98 -------------+--------------------------------------------------------- backsurger~l | 3,082 2.56279 4.637032 -17.67 16.09 coronaryan~a | 3,396 16.02479 8.714206 -48.02 54.79 coronaryar~g | 2,981 1.300419 3.781353 -11.56 9.25 percutaneo~n | 3,287 6.704201 6.759427 -24.17 35.56 carotidend~i | 2,481 .3560016 2.575938 -9.74 7.38 -------------+--------------------------------------------------------- cholecyste~n | 2,944 1.49802 3.56015 -11.31 10.53 hospitaliz~r | 3,304 4.922921 5.782421 -32.27 13.92 hipreplace~r | 2,959 1.756563 3.751016 -12.72 8.15 kneereplac~n | 3,347 6.948697 7.005107 -28.16 18.52 mastect~1000 | 1,067 -.526448 1.109074 -4.2 2.09 -------------+--------------------------------------------------------- resectionf~e | 1,871 -.2321807 1.208048 -3.26 2.14 lowerextre~p | 1,582 -.1515929 1.208967 -5.1 3.36 transureth~n | 1,855 -.2632776 3.794898 -15.72 10.98 radicalpro~m | 1,189 -.4485702 1.849584 -7.98 4.42 aorticmitr~1 | 2,112 .1360748 1.601488 -5.64 2.9 by Jean Roth , jroth@nber.org , 14 Mar 2018