Summary statistics for natl2000 dataset : by Jean Roth , jroth@nber.org , 22 Dec 2015 Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- datayear | 4063823 2000 0 2000 2000 rectype | 4063823 1.2488 .4323175 1 2 restatus | 4063823 1.273164 .4997403 1 4 recwt | 4063823 1 0 1 1 pldel | 4063823 1.024111 .2664103 1 9 -------------+-------------------------------------------------------- pldel3 | 4063823 1.009844 .0994843 1 3 birattnd | 4063823 1.224987 .6532475 1 9 regnocc | 4063823 2.680035 1.020247 1 4 divocc | 4063823 5.281264 2.523199 1 9 stsubocc | 4063823 56.46161 25.54047 11 95 -------------+-------------------------------------------------------- stnatexp | 0 statenat | 0 cntynat | 0 stoccfip | 0 cntocfip | 0 -------------+-------------------------------------------------------- cntocpop | 0 regnres | 4063823 2.675578 1.024547 0 4 divres | 4063823 5.270839 2.529659 0 9 stsubres | 4063823 56.35152 25.61446 0 95 stresexp | 0 -------------+-------------------------------------------------------- stateres | 0 cntyres | 0 cityres | 0 citrspop | 0 metrores | 0 -------------+-------------------------------------------------------- stresfip | 0 cntyrfip | 0 placefip | 0 cmsa | 0 smsarfip | 0 -------------+-------------------------------------------------------- cntrspop | 0 magerflg | 196259 1 0 1 1 mageimp | 0 dmage | 4063823 27.17577 6.194412 10 54 mage36 | 4063823 14.17625 6.193348 1 41 -------------+-------------------------------------------------------- mage12 | 4063823 8.891403 1.603606 1 14 mage8 | 4063823 4.034781 1.274037 1 9 ormoth | 4063823 .4598205 1.312402 0 9 orracem | 4063823 5.447664 2.034933 1 9 mraceimp | 0 -------------+-------------------------------------------------------- mrace | 4063823 2.827271 9.89859 1 78 mrace3 | 4063823 1.366131 .7338669 1 3 dmeduc | 4063823 14.13078 10.83713 0 99 meduc6 | 4063823 3.474787 1.218021 1 6 dmarimp | 0 -------------+-------------------------------------------------------- dmar | 4063823 1.33173 .4708345 1 2 mplbir | 4063823 32.65614 18.79339 1 99 mplbirr | 4063823 1.220256 .4215466 1 3 dmagerpt | 4063823 93.4646 19.1457 10 99 adequacy | 4063823 1.437685 .8156379 1 4 -------------+-------------------------------------------------------- nlbnl | 4063823 1.381047 5.908336 0 99 nlbnd | 4063823 .4312023 6.372911 0 99 noterm | 4063823 .8368947 6.854433 0 99 dlivord | 4063823 2.48024 6.507698 1 99 livord9 | 4063823 2.082522 1.289379 1 9 -------------+-------------------------------------------------------- dtotord | 4063823 2.885614 6.828534 1 99 totord9 | 4063823 2.441302 1.561852 1 9 monpre | 4063823 5.037878 15.69242 0 99 mpre6 | 4063823 1.694094 1.138728 1 6 mpre5 | 4063823 1.320776 .8128353 1 5 -------------+-------------------------------------------------------- nprevis | 4063823 14.75428 16.88138 0 99 nprev12 | 4063823 7.113685 2.073857 1 12 lmpmon | 4063823 11.31595 20.63538 1 99 lmpday | 4063823 25.15175 28.36523 1 99 lmpyr | 4063823 2402.389 1750.001 1999 9999 -------------+-------------------------------------------------------- flgbwimp | 0 bwimp | 2108 2166.868 1408.005 227 4933 fagerflg | 162356 1 0 1 1 dfage | 4063823 39.73272 24.47316 10 99 fage11 | 4063823 5.530947 2.536221 1 11 -------------+-------------------------------------------------------- orfath | 4063823 1.569811 3.126434 0 9 orracef | 4063823 5.890378 2.259008 1 9 frace | 4063823 16.65067 34.98 1 99 frace4 | 4063823 1.700502 1.136611 1 4 dfagerpt | 4063823 94.48144 17.01767 10 99 -------------+-------------------------------------------------------- fraceimp | 14809 3 0 3 3 cdobmimp | 1 1 . 1 1 birmon | 4063823 6.557159 3.425873 1 12 biryr | 4063823 2000 0 2000 2000 weekday | 4063823 4.037239 1.871371 1 7 -------------+-------------------------------------------------------- gestestm | 198297 1 0 1 1 gestimp | 269995 1 0 1 1 dgestat | 4063823 39.42378 6.705987 17 99 gestat10 | 4063823 6.47166 1.312442 1 10 gestat3 | 4063823 1.895626 .3388741 1 3 -------------+-------------------------------------------------------- cseximp | 98 1 0 1 1 csex | 4063823 1.488273 .4998625 1 2 dbirwt | 4063823 3324.586 649.0991 227 9999 birwt12 | 4063823 7.138544 1.254034 1 12 birwt4 | 4063823 2.911303 .3343279 1 4 -------------+-------------------------------------------------------- plurimp | 147 1 0 1 1 dplural | 4063823 1.033051 .190401 1 5 fmaps | 4063823 29.17044 37.62201 0 99 fmapsr | 4063823 4.133953 .5775992 1 5 clingest | 4063823 46.959 20.89964 17 99 -------------+-------------------------------------------------------- vaginal | 4063823 1.288431 .7899627 1 9 vbac | 4063823 2.031133 .6218517 1 9 primac | 4063823 1.911133 .7069454 1 9 repeac | 4063823 1.968046 .6706228 1 9 forcep | 4063823 2.032742 .6204742 1 9 -------------+-------------------------------------------------------- vacuum | 4063823 2.00515 .6431376 1 9 delmeth5 | 4063823 1.593244 1.063183 1 5 anemia | 4063823 2.087384 .8860898 1 9 cardiac | 4063823 2.105736 .8736469 1 9 lung | 4063823 2.099274 .8780921 1 9 -------------+-------------------------------------------------------- diabetes | 4063823 2.082085 .8895799 1 9 herpes | 4063823 2.63437 1.886946 1 9 hydra | 4063823 2.097754 .8791277 1 9 hemo | 4063823 2.110163 .8705609 1 9 chyper | 4063823 2.103499 .8751937 1 9 -------------+-------------------------------------------------------- phyper | 4063823 2.072733 .8956294 1 9 eclamp | 4063823 2.107916 .8721314 1 9 incervix | 4063823 2.108146 .871971 1 9 pre4000 | 4063823 2.100244 .8774292 1 9 preterm | 4063823 2.098933 .8783245 1 9 -------------+-------------------------------------------------------- renal | 4063823 2.107916 .8721315 1 9 rh | 4063823 2.166199 1.059722 1 9 uterine | 4063823 2.63677 1.8855 1 9 othermr | 4063823 1.938795 .9683149 1 9 tobacco | 4063823 2.886164 2.500943 1 9 -------------+-------------------------------------------------------- cigar | 4063823 16.22737 35.52529 0 99 cigar6 | 4063823 1.119884 2.199919 0 9 alcohol | 4063823 2.99664 2.458863 1 9 drink | 4063823 14.3405 34.80761 0 99 drink5 | 4063823 .7458952 1.788988 0 9 -------------+-------------------------------------------------------- wtgain | 4063823 44.45651 29.71396 0 99 wtgain9 | 4063823 5.306296 2.673399 1 9 amnio | 4063823 2.040296 .6807411 1 9 monitor | 4063823 1.229973 .8260829 1 9 induct | 4063823 1.867121 .7877498 1 9 -------------+-------------------------------------------------------- stimula | 4063823 1.886274 .778537 1 9 tocol | 4063823 2.041677 .6796422 1 9 ultras | 4063823 1.4003 .8633584 1 9 otherob | 4063823 1.999389 .7112936 1 9 febrile | 4063823 2.07112 .7819769 1 9 -------------+-------------------------------------------------------- meconium | 4063823 2.033671 .8079982 1 9 rupture | 4063823 2.062579 .7881442 1 9 abruptio | 4063823 2.08146 .7743197 1 9 preplace | 4063823 2.083696 .7726355 1 9 excebld | 4063823 2.080669 .7749126 1 9 -------------+-------------------------------------------------------- seizure | 4063823 2.086495 .7705129 1 9 precip | 4063823 2.067558 .7845665 1 9 prolong | 4063823 2.07914 .7760562 1 9 dysfunc | 4063823 2.059046 .7906541 1 9 breech | 4063823 2.048599 .7979386 1 9 -------------+-------------------------------------------------------- cephalo | 4063823 2.069879 .7828819 1 9 cord | 4063823 2.084985 .7716599 1 9 anesthe | 4063823 2.62737 1.859773 1 9 distress | 4063823 2.592814 1.880286 1 9 otherlb | 4063823 1.937983 .863619 1 9 -------------+-------------------------------------------------------- nanemia | 4063823 2.128296 .939096 1 9 injury | 4063823 2.706261 1.970976 1 9 alcosyn | 4063823 2.233463 1.212541 1 9 hyaline | 4063823 2.123301 .9424192 1 9 meconsyn | 4063823 2.127391 .939701 1 9 -------------+-------------------------------------------------------- venl30 | 4063823 2.30246 1.416683 1 9 ven30m | 4063823 2.314458 1.40982 1 9 nseiz | 4063823 2.128747 .9387944 1 9 otherab | 4063823 2.086053 .9660227 1 9 anen | 4063823 2.153839 1.003223 1 9 -------------+-------------------------------------------------------- spina | 4063823 2.153741 1.003286 1 9 hydro | 4063823 2.153712 1.003305 1 9 microce | 4063823 2.153874 1.0032 1 9 nervous | 4063823 2.153741 1.003286 1 9 heart | 4063823 2.152724 1.003949 1 9 -------------+-------------------------------------------------------- circul | 4063823 2.152594 1.004033 1 9 rectal | 4063823 2.153862 1.003208 1 9 tracheo | 4063823 2.153825 1.003232 1 9 omphalo | 4063823 2.153653 1.003344 1 9 gastro | 4063823 2.153652 1.003344 1 9 -------------+-------------------------------------------------------- genital | 4063823 2.153121 1.00369 1 9 renalage | 4063823 2.153809 1.003242 1 9 urogen | 4063823 2.152973 1.003786 1 9 cleftlp | 4063823 2.153142 1.003677 1 9 adactyly | 4063823 2.153092 1.003709 1 9 -------------+-------------------------------------------------------- clubfoot | 4063823 2.153385 1.003519 1 9 hernia | 4063823 2.153839 1.003223 1 9 musculo | 4063823 2.151824 1.004533 1 9 downs | 4063823 2.153485 1.003453 1 9 chromo | 4063823 2.153556 1.003407 1 9 -------------+-------------------------------------------------------- othercon | 4063823 2.150099 1.00565 1 9 origm | 4063823 .9987674 .0350865 0 1 origf | 4063823 .9987674 .0350865 0 1 educm | 4063823 .9987674 .0350865 0 1 educf | 4063823 0 0 0 0 -------------+-------------------------------------------------------- geste | 4063823 .8678663 .3386361 0 1 fmapsrf | 4063823 .7784397 .4152968 0 1 delmetrf | 4063823 .9987674 .0350865 0 1 medrsk | 4063823 .9987674 .0350865 0 1 tobuse | 4063823 .8678663 .3386361 0 1 -------------+-------------------------------------------------------- alcuse | 4063823 .8678663 .3386361 0 1 wtgn | 4063823 .8678663 .3386361 0 1 obstrc | 4063823 .9987674 .0350865 0 1 clabor | 4063823 .9987674 .0350865 0 1 abnml | 4063823 .9987674 .0350865 0 1 -------------+-------------------------------------------------------- congan | 4063823 .9920686 .0887048 0 1 educsmsa | 4063823 1 0 1 1 apiflag | 4063823 .4471738 .4972016 0 1 smsares | 0 popsmas | 0 by Jean Roth , jroth@nber.org , 22 Dec 2015