Summary statistics for 2002_surg_discharges_hsa dataset : by Jean Roth , jroth@nber.org , 14 Mar 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- hsanumber | 3,429 26309.88 14846.65 1001 99999 hsalabel | 0 medicar~2002 | 3,429 16429.06 481094.3 61 2.82e+07 allsurgica~i | 3,403 104.3267 15.29468 30.30623 171.224 backsurger~l | 1,109 3.944636 1.489721 .7835199 11.57557 -------------+--------------------------------------------------------- coronaryan~a | 2,882 23.04758 7.567222 4.376927 60.71692 coronaryar~g | 1,516 5.820962 1.681147 1.805271 14.90388 percutaneo~n | 2,116 10.76527 4.261684 2.468722 45.22389 carotidend~i | 897 3.284829 1.257068 .5815641 9.328136 cholecyste~n | 1,291 4.610371 1.373351 1.484991 10.4095 -------------+--------------------------------------------------------- hospitaliz~r | 1,817 7.726953 1.448141 1.817488 13.90352 hipreplace~r | 882 3.08054 .8634008 .8441234 6.124565 kneereplac~n | 1,582 6.361464 1.822462 .7921776 15.55476 mastect~1000 | 151 1.290846 .4307512 .4350375 2.569196 resectionf~e | 490 1.830506 .3637327 .779752 2.958224 -------------+--------------------------------------------------------- lowerextre~p | 334 1.566215 .5366045 .5428876 4.421672 transureth~n | 666 5.724843 2.055793 1.272616 15.22519 aorticmitr~1 | 354 1.468489 .4246507 .566349 3.044946 by Jean Roth , jroth@nber.org , 14 Mar 2018