Summary statistics for nhamcsed1999 dataset : by Jean Roth , jroth@nber.org , 28 Mar 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- vmonth | 21,103 6.413306 3.45766 1 12 vyear | 21,103 1998.971 .1668782 1998 1999 vdayr | 21,103 3.962517 2.033174 1 7 timevis | 0 age | 21,103 35.96185 23.88088 0 100 -------------+--------------------------------------------------------- arrive | 21,103 2.794958 .8533271 1 5 sex | 21,103 1.477847 .4995208 1 2 pregnant | 21,103 3.089798 .9501566 1 4 ethnic | 21,103 2.062029 .5403711 1 3 race | 21,103 1.301853 .5570137 1 5 -------------+--------------------------------------------------------- waittime | 21,103 365.4131 450.2276 0 999 paytype | 21,103 2.97408 2.188869 1 9 hmo | 21,103 2.167417 .7538332 1 4 urgent | 21,103 2.639483 1.276398 1 5 pain | 21,103 2.235417 1.453256 1 6 -------------+--------------------------------------------------------- rfv1 | 21,103 25374.98 18353.34 10050 90000 rfv2 | 21,103 59133.16 35426.49 10050 90000 rfv3 | 21,103 78147.93 26913.09 10050 90000 rfv13d | 21,103 2537.444 1835.36 1005 9000 rfv23d | 21,103 5913.292 3542.679 1005 9000 -------------+--------------------------------------------------------- rfv33d | 21,103 7814.784 2691.329 1005 9000 injury | 21,103 .3613704 .480409 0 1 place | 21,103 7.457328 2.743336 1 9 intent | 21,103 4.281856 .9981388 1 5 workrel | 21,103 3.35104 .9408508 1 4 -------------+--------------------------------------------------------- cause1 | 0 cause2 | 0 cause3 | 0 cause13d | 0 cause23d | 0 -------------+--------------------------------------------------------- cause33d | 0 vcause | 0 diag1 | 0 diag2 | 0 diag3 | 0 -------------+--------------------------------------------------------- diag13d | 0 diag23d | 0 diag33d | 0 prdiag1 | 21,103 .0480974 .2708626 0 2 prdiag2 | 21,103 1.307302 .9344993 0 2 -------------+--------------------------------------------------------- prdiag3 | 21,103 1.781737 .6171299 0 2 diagscrn | 21,103 .8924797 .3097809 0 1 mentstat | 21,103 .1322087 .3387255 0 1 blodpres | 21,103 .7570961 .4288476 0 1 ekg | 21,103 .1486992 .3558002 0 1 -------------+--------------------------------------------------------- cardmon | 21,103 .0796095 .2706942 0 1 pulsoxim | 21,103 .2049472 .4036726 0 1 urine | 21,103 .1631048 .36947 0 1 pregtest | 21,103 .0285267 .1664761 0 1 hivser | 21,103 .0023219 .0481317 0 1 -------------+--------------------------------------------------------- otherstd | 21,103 .0086244 .0924683 0 1 bloodalc | 21,103 .016301 .1266335 0 1 cbc | 21,103 .2541345 .4353839 0 1 otherbld | 21,103 .2301568 .4209431 0 1 otherscr | 21,103 .0890395 .2848075 0 1 -------------+--------------------------------------------------------- diagsc1 | 0 diagsc2 | 0 diagsc13 | 0 diagsc23 | 0 diagsc12 | 0 -------------+--------------------------------------------------------- diagsc22 | 0 chestxry | 21,103 .1649055 .371104 0 1 extrxray | 21,103 .1024973 .3033083 0 1 otherxry | 21,103 .1057196 .3074856 0 1 mri | 21,103 .0021798 .0466384 0 1 -------------+--------------------------------------------------------- ultrasnd | 21,103 .0201867 .1406419 0 1 catscan | 21,103 .0460598 .2096196 0 1 othdiag | 21,103 .0114676 .1064735 0 1 totdiag | 21,103 2.571909 2.098316 0 15 proc | 21,103 .4255319 .4944351 0 1 -------------+--------------------------------------------------------- endoint | 21,103 .0026537 .0514464 0 1 cpr | 21,103 .0024167 .0491019 0 1 ivfluids | 21,103 .1867507 .3897205 0 1 ngtube | 21,103 .0050704 .0710275 0 1 lumbpunc | 21,103 .0023693 .0486192 0 1 -------------+--------------------------------------------------------- bladcath | 21,103 .0194285 .1380288 0 1 wound | 21,103 .1199829 .3249493 0 1 eyeent | 21,103 .0310382 .1734252 0 1 orthoped | 21,103 .069374 .2540951 0 1 obgyn | 21,103 .0217505 .1458711 0 1 -------------+--------------------------------------------------------- otherprc | 21,103 .0225086 .1483343 0 1 proc1 | 0 proc2 | 0 proc13 | 0 proc23 | 0 -------------+--------------------------------------------------------- proc12 | 0 proc22 | 0 totproc | 21,103 .4844335 .6249116 0 8 med | 21,103 .7154907 .4511911 0 1 med1 | 0 -------------+--------------------------------------------------------- med2 | 0 med3 | 0 med4 | 0 med5 | 0 med6 | 0 -------------+--------------------------------------------------------- nummed | 21,103 1.537222 1.481963 0 6 noprovid | 21,103 .015448 .1233293 0 1 staffphy | 21,103 .8863669 .3173727 0 1 resint | 21,103 .0959105 .2944755 0 1 otherphy | 21,103 .0789935 .269735 0 1 -------------+--------------------------------------------------------- physasst | 21,103 .0425532 .2018523 0 1 nursepr | 21,103 .0153533 .1229563 0 1 rn | 21,103 .8802066 .3247275 0 1 lpn | 21,103 .045965 .2094142 0 1 mednurse | 21,103 .0592333 .2360664 0 1 -------------+--------------------------------------------------------- emt | 21,103 .0781879 .2684735 0 1 otherprv | 21,103 .0578117 .2333925 0 1 nodisp | 21,103 .011515 .1066907 0 1 nofollow | 21,103 .0876653 .2828142 0 1 edprn | 21,103 .2341847 .4234982 0 1 -------------+--------------------------------------------------------- refphys | 21,103 .1536274 .3605998 0 1 outtriag | 21,103 .0021798 .0466384 0 1 refothph | 21,103 .4676586 .4989648 0 1 left | 21,103 .0145003 .1195438 0 1 admithos | 21,103 .135194 .3419388 0 1 -------------+--------------------------------------------------------- admitccu | 21,103 .0145477 .1197361 0 1 transfer | 21,103 .019002 .1365351 0 1 doa | 21,103 .002938 .0541247 0 1 refsocs | 21,103 .0036014 .0599048 0 1 otherdis | 21,103 .0357769 .1857379 0 1 -------------+--------------------------------------------------------- patwt | 21,103 4869.671 3386.859 66 15095 region | 21,103 2.470739 1.043815 1 4 urban | 21,103 1.167085 .3730608 1 2 ownsmg | 21,103 1.333602 .6012909 1 3 hospcode | 21,103 262.4905 163.1778 4 601 -------------+--------------------------------------------------------- patcode | 21,103 31.91224 23.47903 1 177 vdatefl | 21,103 0 0 0 0 vtimefl | 21,103 .0321281 .1763445 0 1 bdatefl | 21,103 .0270104 .1621174 0 1 sexfl | 21,103 .0212766 .1443083 0 1 -------------+--------------------------------------------------------- racefl | 21,103 .1223997 .3277546 0 1 urgentfl | 21,103 0 0 0 0 gen1 | 0 prescr1 | 15,099 1.45705 .7281455 1 3 contsub1 | 15,099 5.570634 1.181934 2 7 -------------+--------------------------------------------------------- comstat1 | 15,099 1.226836 .4990444 1 3 drugcl1 | 0 drg1ing1 | 0 drg1ing2 | 0 drg1ing3 | 0 -------------+--------------------------------------------------------- drg1ing4 | 0 drg1ing5 | 0 gen2 | 0 prescr2 | 8,954 1.402167 .691962 1 3 contsub2 | 8,954 5.63346 1.107382 2 7 -------------+--------------------------------------------------------- comstat2 | 8,954 1.227831 .5076456 1 3 drugcl2 | 0 drg2ing1 | 0 drg2ing2 | 0 drg2ing3 | 0 -------------+--------------------------------------------------------- drg2ing4 | 0 drg2ing5 | 0 gen3 | 0 prescr3 | 4,497 1.379586 .6832786 1 3 contsub3 | 4,497 5.587948 1.175963 2 7 -------------+--------------------------------------------------------- comstat3 | 4,497 1.26262 .5465124 1 3 drugcl3 | 0 drg3ing1 | 0 drg3ing2 | 0 drg3ing3 | 0 -------------+--------------------------------------------------------- drg3ing4 | 0 drg3ing5 | 0 gen4 | 0 prescr4 | 2,196 1.32969 .6527685 1 3 contsub4 | 2,196 5.654827 1.081709 2 7 -------------+--------------------------------------------------------- comstat4 | 2,196 1.242714 .5406625 1 3 drugcl4 | 0 drg4ing1 | 0 drg4ing2 | 0 drg4ing3 | 0 -------------+--------------------------------------------------------- drg4ing4 | 0 drg4ing5 | 0 gen5 | 0 prescr5 | 1,120 1.325 .6601784 1 3 contsub5 | 1,120 5.677679 1.053799 2 7 -------------+--------------------------------------------------------- comstat5 | 1,120 1.211607 .5236576 1 3 drugcl5 | 0 drg5ing1 | 0 drg5ing2 | 0 drg5ing3 | 0 -------------+--------------------------------------------------------- drg5ing4 | 0 drg5ing5 | 0 gen6 | 0 prescr6 | 574 1.30662 .6363548 1 3 contsub6 | 574 5.705575 1.044592 2 7 -------------+--------------------------------------------------------- comstat6 | 574 1.236934 .5378793 1 3 drugcl6 | 0 drg6ing1 | 0 drg6ing2 | 0 drg6ing3 | 0 -------------+--------------------------------------------------------- drg6ing4 | 0 drg6ing5 | 0 racer | 21,103 1.294413 .5258826 1 3 agedays | 21,103 970.8763 150.27 0 999 ager | 21,103 3.00744 1.476185 1 6 -------------+--------------------------------------------------------- cause1r | 21,103 2869.429 4188.428 0 9890 cause2r | 21,103 123.4672 1054.393 0 9809 cause3r | 21,103 .8071838 82.91248 0 8532 diag1r | 21,103 176990.6 88691.93 100590 900000 diag2r | 21,103 632654.1 354901.2 100200 900000 -------------+--------------------------------------------------------- diag3r | 21,103 816161.3 234895.2 100200 900000 diagsc1r | 21,103 800.794 2566.426 0 9999 diagsc2r | 21,103 37.63143 585.3538 0 9999 proc1r | 21,103 186.6866 1276.558 0 9999 proc2r | 21,103 6.866891 231.8206 0 9905 -------------+--------------------------------------------------------- whocomp | 21,103 2.127375 1.350969 1 6 intentr | 21,103 .7203241 1.573664 0 7 stratm | 21,103 302.5374 100.0854 201 404 psum | 21,103 14.30721 14.6589 1 46 year | 21,103 1999 0 1999 1999 -------------+--------------------------------------------------------- subfile | 21,103 2 0 2 2 prostrat | 21,103 1.007203 .0845649 1 2 provider | 21,103 191.6109 106.7722 1 376 dept | 21,103 1 0 1 1 su | 21,103 1.2185 .8125257 1 8 -------------+--------------------------------------------------------- clinic | 21,103 1.171255 .6033224 1 5 poppsum | 21,103 -.0008056 1.000023 -1 1 popsum | 21,103 -.0164432 .1271753 -1 0 popvism | 21,103 -.4995972 .5000117 -1 0 popprovm | 21,103 160.8168 163.3051 0 348 by Jean Roth , jroth@nber.org , 28 Mar 2016