Summary statistics for natl1992 dataset : by Jean Roth , jroth@nber.org , 22 Dec 2015 Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- datayear | 4069428 1992 0 1992 1992 rectype | 4069428 1.234113 .4234435 1 2 restatus | 4069428 1.259535 .4951644 1 4 recwt | 4069428 1 0 1 1 pldel | 4069428 1.027265 .2837855 1 9 -------------+-------------------------------------------------------- pldel3 | 4069428 1.011181 .1060512 1 3 birattnd | 4069428 1.171111 .6273801 1 9 regnocc | 4069428 2.647829 1.046132 1 4 divocc | 4069428 5.224323 2.588718 1 9 stsubocc | 4069428 55.78347 26.1775 11 95 -------------+-------------------------------------------------------- stnatexp | 0 statenat | 0 cntynat | 0 stoccfip | 0 cntocfip | 0 -------------+-------------------------------------------------------- cntocpop | 0 regnres | 4069428 2.643879 1.049827 0 4 divres | 4069428 5.215344 2.594515 0 9 stsubres | 4069428 55.68834 26.24215 0 95 stresexp | 0 -------------+-------------------------------------------------------- stateres | 0 cntyres | 0 cityres | 0 citrspop | 0 metrores | 0 -------------+-------------------------------------------------------- stresfip | 0 cntyrfip | 0 cmsa | 0 smsarfip | 0 cntrspop | 0 -------------+-------------------------------------------------------- magerflg | 359011 1 0 1 1 mageimp | 0 dmage | 4069428 26.55823 5.897261 10 49 mage36 | 4069428 13.55892 5.895726 1 36 mage12 | 4069428 8.741437 1.605418 1 13 -------------+-------------------------------------------------------- mage8 | 4069428 3.911966 1.21258 1 8 ormoth | 4069428 .4144506 1.325409 0 9 orracem | 4069428 5.631798 1.832914 1 9 mraceimp | 0 mrace | 4069428 2.407626 8.583846 1 78 -------------+-------------------------------------------------------- mrace3 | 4069428 1.377772 .7524498 1 3 dmeduc | 4069428 13.85447 11.15286 0 99 meduc6 | 4069428 3.328558 1.186187 1 6 dmarimp | 0 dmar | 4069428 1.301129 .4587488 1 2 -------------+-------------------------------------------------------- mplbir | 4069428 31.27461 17.99902 1 99 mplbirr | 4069428 1.174877 .3853304 1 3 dmagerpt | 4069428 92.64587 20.49456 11 99 adequacy | 4069428 1.482499 .8020326 1 4 nlbnl | 4069428 1.412774 6.171548 0 99 -------------+-------------------------------------------------------- nlbnd | 4069428 .4589451 6.563078 0 99 noterm | 4069428 .8641708 6.974465 0 99 dlivord | 4069428 2.499781 6.637883 1 99 livord9 | 4069428 2.085693 1.302612 1 9 dtotord | 4069428 2.974813 7.377248 1 99 -------------+-------------------------------------------------------- totord9 | 4069428 2.455814 1.567503 1 9 monpre | 4069428 4.741569 14.15534 0 99 mpre6 | 4069428 1.816968 1.151694 1 6 mpre5 | 4069428 1.372904 .8154182 1 5 nprevis | 4069428 13.66309 15.24323 0 99 -------------+-------------------------------------------------------- nprev12 | 4069428 6.874553 2.117559 1 12 lmpmon | 4069428 10.37991 18.62707 1 99 lmpday | 4069428 27.22806 30.35983 1 99 lmpyr | 4069428 2327.17 1605.362 1991 9999 llbmon | 4069428 38.34847 36.23856 1 99 -------------+-------------------------------------------------------- llbyr | 4069428 4500.478 2940.766 1900 9999 disllb | 4069428 374.959 376.2512 0 999 isllb10 | 4069428 3.556804 3.398948 0 10 fagerflg | 292248 1 0 1 1 dfage | 4069428 41.27807 26.46663 10 99 -------------+-------------------------------------------------------- fage11 | 4069428 5.623056 2.690064 1 11 orfath | 4069428 1.727905 3.317708 0 9 orracef | 4069428 6.084767 2.112015 1 9 frace | 4069428 17.53153 36.02527 1 99 frace4 | 4069428 1.71433 1.162606 1 4 -------------+-------------------------------------------------------- dfeduc | 4069428 28.13272 33.07991 0 99 feduc6 | 4069428 47.46354 14.57867 11 69 dfagerpt | 4069428 94.06372 17.81865 10 99 fraceimp | 2911 3 0 3 3 cdobmimp | 5 1 0 1 1 -------------+-------------------------------------------------------- birmon | 4069428 6.528764 3.42125 1 12 biryr | 4069428 1992 0 1992 1992 weekday | 4069428 4.037164 1.897131 1 7 gestestm | 174605 1 0 1 1 gestimp | 402549 1 0 1 1 -------------+-------------------------------------------------------- dgestat | 4069428 39.66418 6.531019 17 99 gestat10 | 4069428 6.644756 1.376967 1 10 gestat3 | 4069428 1.904184 .3265469 1 3 cseximp | 72 1 0 1 1 csex | 4069428 1.487813 .4998515 1 2 -------------+-------------------------------------------------------- crace | 4069428 .109742 .8037917 0 7 crace3 | 4069428 1.406226 .7712473 1 3 dbirwt | 4069428 3346.156 643.0406 227 9999 birwt12 | 4069428 7.182581 1.246716 1 12 birwt4 | 4069428 2.917512 .3220061 1 4 -------------+-------------------------------------------------------- plurimp | 767 1 0 1 1 dplural | 4069428 1.025454 .1645826 1 5 omaps | 4069428 29.27227 38.48822 0 99 omapsr | 4069428 3.711928 .9331245 1 5 fmaps | 4069428 29.96622 38.08983 0 99 -------------+-------------------------------------------------------- fmapsr | 4069428 4.140884 .5853909 1 5 clingest | 4069428 48.76588 22.26747 17 99 vaginal | 4069428 1.368554 1.132629 1 9 vbac | 4069428 2.107286 .9650548 1 9 primac | 4069428 1.994857 1.02725 1 9 -------------+-------------------------------------------------------- repeac | 4069428 2.049139 .9992867 1 9 forcep | 4069428 2.088997 .9763246 1 9 vacuum | 4069428 2.083934 .9793614 1 9 delmeth5 | 4069428 1.618188 1.107538 1 5 anemia | 4069428 2.196178 1.215014 1 9 -------------+-------------------------------------------------------- cardiac | 4069428 2.210044 1.206964 1 9 lung | 4069428 2.209787 1.207115 1 9 diabetes | 4069428 2.18873 1.219252 1 9 herpes | 4069428 2.836308 2.123203 1 9 hydra | 4069428 2.424141 1.617903 1 9 -------------+-------------------------------------------------------- hemo | 4069428 2.430952 1.613993 1 9 chyper | 4069428 2.207483 1.208467 1 9 phyper | 4069428 2.186228 1.220661 1 9 eclamp | 4069428 2.210332 1.206794 1 9 incervix | 4069428 2.42939 1.614894 1 9 -------------+-------------------------------------------------------- pre4000 | 4069428 2.421946 1.619155 1 9 preterm | 4069428 2.420388 1.620041 1 9 renal | 4069428 2.21167 1.206006 1 9 rh | 4069428 2.265543 1.334563 1 9 uterine | 4069428 2.61862 1.879345 1 9 -------------+-------------------------------------------------------- othermr | 4069428 2.101159 1.264726 1 9 tobacco | 4069428 3.707986 3.167994 1 9 cigar | 4069428 28.07095 43.26261 0 99 cigar6 | 4069428 1.874191 2.613134 0 6 alcohol | 4069428 3.682106 3.016647 1 9 -------------+-------------------------------------------------------- drink | 4069428 24.6695 42.7853 0 99 drink5 | 4069428 1.267848 2.161029 0 5 wtgain | 4069428 47.88947 31.52251 0 99 wtgain9 | 4069428 5.530841 2.686554 1 9 amnio | 4069428 2.112532 1.011792 1 9 -------------+-------------------------------------------------------- monitor | 4069428 1.387191 1.177367 1 9 induct | 4069428 2.032222 1.056247 1 9 stimula | 4069428 2.017429 1.063572 1 9 tocol | 4069428 2.125185 1.004023 1 9 ultras | 4069428 1.576776 1.180264 1 9 -------------+-------------------------------------------------------- otherob | 4069428 2.100464 1.019 1 9 febrile | 4069428 2.178287 1.14962 1 9 meconium | 4069428 2.132276 1.175553 1 9 rupture | 4069428 2.16034 1.160021 1 9 abruptio | 4069428 2.185792 1.145159 1 9 -------------+-------------------------------------------------------- preplace | 4069428 2.188028 1.143817 1 9 excebld | 4069428 2.186243 1.144888 1 9 seizure | 4069428 2.191092 1.141968 1 9 precip | 4069428 2.172651 1.152926 1 9 prolong | 4069428 2.181772 1.147556 1 9 -------------+-------------------------------------------------------- dysfunc | 4069428 2.162698 1.158676 1 9 breech | 4069428 2.154809 1.163152 1 9 cephalo | 4069428 2.807992 2.128408 1 9 cord | 4069428 2.18904 1.143207 1 9 anesthe | 4069428 2.615559 1.860139 1 9 -------------+-------------------------------------------------------- distress | 4069428 2.578226 1.882025 1 9 otherlb | 4069428 2.072651 1.205724 1 9 nanemia | 4069428 2.243118 1.285246 1 9 injury | 4069428 2.823512 2.113031 1 9 alcosyn | 4069428 2.571021 1.826901 1 9 -------------+-------------------------------------------------------- hyaline | 4069428 2.238174 1.288093 1 9 meconsyn | 4069428 2.4628 1.677616 1 9 venl30 | 4069428 2.642066 1.940519 1 9 ven30m | 4069428 2.648564 1.93668 1 9 nseiz | 4069428 2.243575 1.284982 1 9 -------------+-------------------------------------------------------- otherab | 4069428 2.204317 1.306913 1 9 anen | 4069428 2.763791 2.182683 1 9 spina | 4069428 2.763706 2.182732 1 9 hydro | 4069428 2.763673 2.182751 1 9 microce | 4069428 2.763834 2.182658 1 9 -------------+-------------------------------------------------------- nervous | 4069428 2.763698 2.182736 1 9 heart | 4069428 2.762839 2.183233 1 9 circul | 4069428 2.762744 2.183289 1 9 rectal | 4069428 2.763815 2.182669 1 9 tracheo | 4069428 2.763783 2.182687 1 9 -------------+-------------------------------------------------------- omphalo | 4069428 2.763695 2.182738 1 9 gastro | 4069428 2.763633 2.182774 1 9 genital | 4069428 2.763252 2.182995 1 9 renalage | 4069428 2.763811 2.182671 1 9 urogen | 4069428 2.76289 2.183204 1 9 -------------+-------------------------------------------------------- cleftlp | 4069428 2.763148 2.183055 1 9 adactyly | 4069428 2.763163 2.183046 1 9 clubfoot | 4069428 2.763398 2.18291 1 9 hernia | 4069428 2.763798 2.182679 1 9 musculo | 4069428 2.762241 2.183579 1 9 -------------+-------------------------------------------------------- downs | 4069428 2.763463 2.182873 1 9 chromo | 4069428 2.763534 2.182832 1 9 othercon | 4069428 2.758212 2.185904 1 9 origm | 4069428 .994986 .0706317 0 1 origf | 4069428 .994986 .0706317 0 1 -------------+-------------------------------------------------------- educm | 4069428 .9989153 .0329165 0 1 educf | 4069428 .9989153 .0329165 0 1 geste | 4069428 .8510493 .3560399 0 1 omapsrf | 4069428 .7722066 .4194087 0 1 fmapsrf | 4069428 .7722066 .4194087 0 1 -------------+-------------------------------------------------------- delmetrf | 4069428 .9989153 .0329165 0 1 medrsk | 4069428 .9989153 .0329165 0 1 tobuse | 4069428 .7569219 .428942 0 1 alcuse | 4069428 .777598 .4158598 0 1 wtgn | 4069428 .8510493 .3560399 0 1 -------------+-------------------------------------------------------- obstrc | 4069428 .9989153 .0329165 0 1 clabor | 4069428 .9989153 .0329165 0 1 abnml | 4069428 .9989153 .0329165 0 1 congan | 4069428 .9213101 .2692542 0 1 educsmsa | 4069428 .8018935 .3985729 0 1 -------------+-------------------------------------------------------- apiflag | 4069428 .398356 .4895596 0 1 smsares | 0 popsmas | 0 by Jean Roth , jroth@nber.org , 22 Dec 2015