Summary statistics for natl2002 dataset : by Jean Roth , jroth@nber.org , 22 Dec 2015 Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- datayear | 4027376 2002 0 2002 2002 rectype | 4027376 1.252228 .4342912 1 2 restatus | 4027376 1.276752 .5020115 1 4 recwt | 4027376 1 0 1 1 pldel | 4027376 1.02287 .2561452 1 9 -------------+-------------------------------------------------------- pldel3 | 4027376 1.009384 .0967241 1 3 birattnd | 4027376 1.233094 .6597641 1 9 regnocc | 4027376 2.690508 1.019967 1 4 divocc | 4027376 5.308225 2.522327 1 9 stocc | 4027376 56.75494 25.53187 11 95 -------------+-------------------------------------------------------- stnatexp | 0 statenat | 0 cntynat | 0 stoccfip | 0 cntocfip | 0 -------------+-------------------------------------------------------- cntocpop | 4027376 2.715596 3.182355 0 9 regnres | 4027376 2.685515 1.024929 0 4 divres | 4027376 5.296584 2.529591 0 9 stsubres | 4027376 56.63128 25.61602 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 | 197303 1 0 1 1 mageimp | 0 dmage | 4027376 27.33664 6.183305 10 54 mage36 | 4027376 14.33706 6.182372 1 41 -------------+-------------------------------------------------------- mage12 | 4027376 8.940506 1.570214 1 14 mage8 | 4027376 4.06811 1.270236 1 9 ormoth | 4027376 .4527457 1.216014 0 9 orracem | 4027376 5.365356 2.084391 1 9 mraceimp | 0 -------------+-------------------------------------------------------- mrace | 4027376 2.949959 10.27584 1 78 mrace3 | 4027376 1.357808 .7243431 1 3 dmeduc | 4027376 14.03362 10.30021 0 99 meduc6 | 4027376 3.490393 1.226779 1 6 dmarimp | 0 -------------+-------------------------------------------------------- dmar | 4027376 1.339472 .4735303 1 2 mplbir | 4027376 33.22639 18.93672 1 99 mplbirr | 4027376 1.237642 .4309368 1 3 dmagerpt | 4027376 93.31896 19.42523 12 99 adequacy | 4027376 1.401322 .7654743 1 4 -------------+-------------------------------------------------------- nlbnl | 4027376 1.231655 4.403566 0 99 nlbnd | 4027376 .2581472 4.865314 0 99 noterm | 4027376 .636536 5.228855 0 99 dlivord | 4027376 2.313596 5.040884 1 99 livord9 | 4027376 2.079276 1.258946 1 9 -------------+-------------------------------------------------------- dtotord | 4027376 2.751948 5.777319 1 99 totord9 | 4027376 2.436782 1.539113 1 9 monpre | 4027376 4.327135 13.49145 0 99 mpre6 | 4027376 1.648665 1.069322 1 6 mpre5 | 4027376 1.284263 .7419448 1 5 -------------+-------------------------------------------------------- nprevis | 4027376 13.85424 14.59774 0 99 nprev12 | 4027376 7.054 1.998805 1 12 lmpmon | 4027376 11.02077 19.96101 1 99 lmpday | 4027376 23.50082 26.7018 1 99 lmpyr | 4027376 2380 1698.745 2001 9999 -------------+-------------------------------------------------------- flgbwimp | 1804 1 0 1 1 bwimp | 1804 2032.657 1452.256 227 5216 fagerflg | 164221 1 0 1 1 dfage | 4027376 39.66342 24.21838 10 99 fage11 | 4027376 5.540198 2.512192 1 11 -------------+-------------------------------------------------------- orfath | 4027376 1.603927 3.131456 0 9 orracef | 4027376 5.826976 2.313222 1 9 frace | 4027376 16.58326 34.86119 1 99 frace4 | 4027376 1.693727 1.131248 1 4 dfagerpt | 4027376 94.36252 17.28151 13 99 -------------+-------------------------------------------------------- fraceimp | 16037 3 0 3 3 cdobmimp | 1 1 . 1 1 birmon | 4027376 6.560527 3.41681 1 12 biryr | 4027376 2002 0 2002 2002 weekday | 4027376 4.056121 1.850342 1 7 -------------+-------------------------------------------------------- gestestm | 184625 1 0 1 1 gestimp | 211524 1 0 1 1 dgestat | 4027376 39.30292 6.599538 17 99 gestat10 | 4027376 6.416203 1.295794 1 10 gestat3 | 4027376 1.89077 .3432287 1 3 -------------+-------------------------------------------------------- cseximp | 74 1 0 1 1 csex | 4027376 1.488288 .4998629 1 2 dbirwt | 4027376 3303.672 630.6741 227 9999 birwt12 | 4027376 7.10093 1.244148 1 12 birwt4 | 4027376 2.908143 .3376531 1 4 -------------+-------------------------------------------------------- plurimp | 87 1 0 1 1 dplural | 4027376 1.034917 .1948853 1 5 fmaps | 4027376 29.4047 37.77978 0 99 fmapsr | 4027376 4.138694 .5757453 1 5 clingest | 4027376 46.72886 20.73772 17 99 -------------+-------------------------------------------------------- vaginal | 4027376 1.307657 .7365274 1 9 vbac | 4027376 2.027524 .5488044 1 9 primac | 4027376 1.884707 .6568626 1 9 repeac | 4027376 1.940576 .6207742 1 9 forcep | 4027376 2.027514 .5488139 1 9 -------------+-------------------------------------------------------- vacuum | 4027376 1.998678 .5751421 1 9 delmeth5 | 4027376 1.659672 1.106478 1 5 anemia | 4027376 2.032299 .6486992 1 9 cardiac | 4027376 2.052779 .6313387 1 9 lung | 4027376 2.045589 .637562 1 9 -------------+-------------------------------------------------------- diabetes | 4027376 2.025287 .65439 1 9 herpes | 4027376 2.604908 1.836295 1 9 hydra | 4027376 2.044018 .638903 1 9 hemo | 4027376 2.057039 .6275833 1 9 chyper | 4027376 2.049518 .6341792 1 9 -------------+-------------------------------------------------------- phyper | 4027376 2.020364 .6583115 1 9 eclamp | 4027376 2.054613 .6297278 1 9 incervix | 4027376 2.054915 .6294615 1 9 pre4000 | 4027376 2.047367 .6360361 1 9 preterm | 4027376 2.045423 .6377045 1 9 -------------+-------------------------------------------------------- renal | 4027376 2.054796 .629567 1 9 rh | 4027376 2.113778 .8770963 1 9 uterine | 4027376 2.60813 1.834352 1 9 othermr | 4027376 1.867755 .7542606 1 9 tobacco | 4027376 2.862539 2.466332 1 9 -------------+-------------------------------------------------------- cigar | 4027376 15.52311 34.93636 0 99 cigar6 | 4027376 1.071024 2.166522 0 9 alcohol | 4027376 2.965229 2.425349 1 9 drink | 4027376 13.81152 34.26432 0 99 drink5 | 4027376 .7202119 1.765189 0 9 -------------+-------------------------------------------------------- wtgain | 4027376 43.4809 29.30074 0 99 wtgain9 | 4027376 5.225354 2.674277 1 9 amnio | 4027376 2.014545 .5001796 1 9 monitor | 4027376 1.186581 .6455264 1 9 induct | 4027376 1.829033 .6377094 1 9 -------------+-------------------------------------------------------- stimula | 4027376 1.861961 .619613 1 9 tocol | 4027376 2.013388 .5013671 1 9 ultras | 4027376 1.362018 .7041994 1 9 otherob | 4027376 1.966976 .5448569 1 9 febrile | 4027376 2.027299 .5504751 1 9 -------------+-------------------------------------------------------- meconium | 4027376 1.992674 .5816695 1 9 rupture | 4027376 2.019455 .557883 1 9 abruptio | 4027376 2.03712 .5408971 1 9 preplace | 4027376 2.039119 .5389041 1 9 excebld | 4027376 2.036442 .5415689 1 9 -------------+-------------------------------------------------------- seizure | 4027376 2.042114 .5358919 1 9 precip | 4027376 2.02422 .5534077 1 9 prolong | 4027376 2.035455 .542545 1 9 dysfunc | 4027376 2.01401 .5629037 1 9 breech | 4027376 2.004588 .5713649 1 9 -------------+-------------------------------------------------------- cephalo | 4027376 2.026733 .5510168 1 9 cord | 4027376 2.040712 .5373059 1 9 anesthe | 4027376 2.601303 1.813543 1 9 distress | 4027376 2.567107 1.833873 1 9 otherlb | 4027376 1.888595 .6557904 1 9 -------------+-------------------------------------------------------- nanemia | 4027376 2.055303 .6194755 1 9 injury | 4027376 2.652849 1.887861 1 9 alcosyn | 4027376 2.16023 .9927951 1 9 hyaline | 4027376 2.050293 .6239304 1 9 meconsyn | 4027376 2.05498 .6197651 1 9 -------------+-------------------------------------------------------- venl30 | 4027376 2.227724 1.233112 1 9 ven30m | 4027376 2.238842 1.226483 1 9 nseiz | 4027376 2.055871 .6189655 1 9 otherab | 4027376 2.010803 .6566519 1 9 anen | 4027376 2.099399 .7980772 1 9 -------------+-------------------------------------------------------- spina | 4027376 2.099299 .7981522 1 9 hydro | 4027376 2.099275 .7981706 1 9 microce | 4027376 2.099442 .7980451 1 9 nervous | 4027376 2.099278 .7981686 1 9 heart | 4027376 2.098217 .7989637 1 9 -------------+-------------------------------------------------------- circul | 4027376 2.0982 .7989767 1 9 rectal | 4027376 2.099415 .7980656 1 9 tracheo | 4027376 2.09939 .7980845 1 9 omphalo | 4027376 2.099198 .7982286 1 9 gastro | 4027376 2.099141 .7982713 1 9 -------------+-------------------------------------------------------- genital | 4027376 2.098644 .7986439 1 9 renalage | 4027376 2.099344 .7981184 1 9 urogen | 4027376 2.098494 .7987561 1 9 cleftlp | 4027376 2.098723 .7985846 1 9 adactyly | 4027376 2.098687 .7986115 1 9 -------------+-------------------------------------------------------- clubfoot | 4027376 2.09891 .7984447 1 9 hernia | 4027376 2.099377 .7980936 1 9 musculo | 4027376 2.097242 .7996925 1 9 downs | 4027376 2.099037 .7983491 1 9 chromo | 4027376 2.099185 .7982379 1 9 -------------+-------------------------------------------------------- othercon | 4027376 2.103932 .8645438 1 9 origm | 4027376 .9985971 .037429 0 1 origf | 4027376 .9985971 .037429 0 1 educm | 4027376 .9985971 .037429 0 1 educf | 4027376 0 0 0 0 -------------+-------------------------------------------------------- geste | 4027376 .8671574 .3394046 0 1 fmapsrf | 4027376 .7746779 .4177944 0 1 delmetrf | 4027376 .9985971 .037429 0 1 medrsk | 4027376 .9985971 .037429 0 1 tobuse | 4027376 .8671574 .3394046 0 1 -------------+-------------------------------------------------------- alcuse | 4027376 .8671574 .3394046 0 1 wtgn | 4027376 .8671574 .3394046 0 1 obstrc | 4027376 .9985971 .037429 0 1 clabor | 4027376 .9985971 .037429 0 1 abnml | 4027376 .9985971 .037429 0 1 -------------+-------------------------------------------------------- congan | 4027376 .991706 .0906929 0 1 educsmsa | 4027376 1 0 1 1 apiflag | 4027376 .4491162 .4974042 0 1 smsares | 0 popsmas | 0 by Jean Roth , jroth@nber.org , 22 Dec 2015