Summary statistics for natl2009.20120109 dataset : by Jean Roth , jroth@nber.org , 22 Dec 2015 Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- revision | 0 dob_yy | 4137836 2009 0 2009 2009 dob_mm | 4137836 6.530679 3.411896 1 12 dob_wk | 4137836 4.040997 1.82477 1 7 oterr | 0 -------------+-------------------------------------------------------- ocntyfips | 0 ocntypop | 0 bfacil | 2816719 1.026942 .279039 1 9 ubfacil | 4137836 1.027369 .2808408 1 9 bfacil3 | 4137836 1.011166 .1056693 1 3 -------------+-------------------------------------------------------- mage_impflg | 415 1 0 1 1 mage_repflg | 118954 1 0 1 1 mager | 4137836 27.51143 6.141584 12 50 mager14 | 4137836 8.988853 1.527072 1 14 mager9 | 4137836 4.10022 1.262572 1 9 -------------+-------------------------------------------------------- mbcntry | 0 mrterr | 0 mrcnty | 0 rcnty_pop | 0 rectype | 0 -------------+-------------------------------------------------------- restatus | 4137836 1.292976 .5093277 1 4 mbrace | 2918263 1.928323 3.240941 1 24 mrace | 1219573 3.318463 11.54377 1 78 mracerec | 4137836 1.364659 .7870888 1 4 mraceimp | 0 -------------+-------------------------------------------------------- umhisp | 4137836 .5569493 1.355373 0 9 mracehisp | 4137836 5.337576 2.110216 1 9 mar | 4137836 1.409791 .4917951 1 2 mar_imp | 2557 1 0 1 1 meduc | 2816719 4.007038 1.82863 1 9 -------------+-------------------------------------------------------- dmeduc | 1321117 14.04412 8.452155 0 99 meduc_rec | 1321117 3.655006 1.187535 1 6 fagerpt_flg | 108078 1 0 1 1 fagecomb | 2816719 39.5007 24.04663 9 99 ufagecomb | 4137836 40.10571 24.55656 9 99 -------------+-------------------------------------------------------- fagerec11 | 4137836 5.588712 2.546313 1 11 fbrace | 2918263 21.14344 38.8022 1 99 fracerec | 4137836 2.831469 3.104122 1 9 ufhisp | 4137836 1.746741 3.19478 0 9 fracehisp | 4137836 5.823216 2.359118 1 9 -------------+-------------------------------------------------------- frace | 1219573 20.85118 38.45155 1 99 lbo_rec | 4137836 2.116479 1.353012 1 9 tbo_rec | 4137836 2.517896 1.709554 1 9 precare | 2816719 7.683668 20.59279 0 99 precare_rec | 2816719 1.540099 1.010608 1 5 -------------+-------------------------------------------------------- mpcb | 1321117 4.075989 12.50635 0 99 mpcb_rec6 | 1321117 1.640191 1.033841 1 6 mpcb_rec5 | 1321117 1.266615 .707659 1 5 uprevis | 4137836 14.53157 17.24366 0 99 previs_rec | 4137836 6.957973 2.089155 1 12 -------------+-------------------------------------------------------- wtgain | 4137836 34.30862 21.11113 0 99 wtgain_rec | 4137836 3.656412 1.74153 1 9 dfpc_imp | 192569 1 0 1 1 cig_1 | 2816719 18.36441 37.58568 0 99 cig_2 | 2816719 18.15644 37.62343 0 99 -------------+-------------------------------------------------------- cig_3 | 2816719 18.08551 37.63823 0 99 tobuse | 1321117 1.925271 .4768001 1 9 cigs | 1321117 1.27869 7.533492 0 99 cig_rec6 | 1321117 .1934401 .6950076 0 6 cig_rec | 0 -------------+-------------------------------------------------------- pwgt | 2816719 188.882 174.9748 74 999 dwgt | 2816719 218.9099 170.618 99 999 rf_diab | 0 rf_gest | 0 rf_phyp | 0 -------------+-------------------------------------------------------- rf_ghyp | 0 rf_eclam | 0 rf_ppterm | 0 rf_ppoutc | 0 rf_cesar | 0 -------------+-------------------------------------------------------- rf_cesarn | 2816719 .7955905 7.790665 0 99 urf_diab | 4137836 1.983878 .5153364 1 9 urf_chyper | 4137836 2.018626 .4803506 1 9 urf_phyper | 4137836 1.990248 .5092801 1 9 urf_eclam | 4137836 2.028523 .4694386 1 9 -------------+-------------------------------------------------------- op_cerv | 0 op_tocol | 0 op_ecvs | 0 op_ecvf | 0 uop_induc | 4137836 1.796939 .6179899 1 9 -------------+-------------------------------------------------------- uop_tocol | 4137836 2.029808 .5613391 1 9 op_ruptr | 0 op_precip | 0 op_prol | 0 ld_indl | 0 -------------+-------------------------------------------------------- ld_augm | 0 ld_nvpr | 0 ld_ster | 0 ld_anti | 0 ld_chor | 0 -------------+-------------------------------------------------------- ld_mecs | 0 ld_fint | 0 ld_anes | 0 uld_meco | 4137836 1.981715 .486736 1 9 uld_precip | 4137836 2.019051 .5660527 1 9 -------------+-------------------------------------------------------- uld_breech | 4137836 2.098956 1.050116 1 9 me_attf | 0 me_attv | 0 me_pres | 0 me_rout | 0 -------------+-------------------------------------------------------- me_trial | 0 ume_vag | 1321117 1.384514 .8090815 1 9 ume_vbac | 1321117 2.042392 .6113595 1 9 ume_primc | 1321117 1.862979 .7322541 1 9 ume_repec | 1321117 1.916704 .7030702 1 9 -------------+-------------------------------------------------------- ume_forcp | 4137836 2.015068 .3978709 1 9 ume_vac | 4137836 1.991376 .4267849 1 9 rdmeth_rec | 2816719 1.816941 1.191342 1 9 udmeth_rec | 1321117 1.854726 1.31682 1 9 dmeth_rec | 4137836 1.352428 .6339236 1 9 -------------+-------------------------------------------------------- attend | 4137836 1.252051 .693365 1 9 apgar5 | 4137836 9.334842 6.859526 0 99 apgar5r | 4137836 3.849191 .444107 1 5 dplural | 4137836 1.036403 .1966841 1 5 imp_plur | 279 1 0 1 1 -------------+-------------------------------------------------------- sex | 0 imp_sex | 66 1 0 1 1 dlmp_mm | 4137836 11.81394 21.51715 1 99 dlmp_yy | 4137836 2441.741 1809.987 2007 9999 estgest | 4137836 38.63275 3.863913 0 99 -------------+-------------------------------------------------------- combgest | 4137836 38.64773 3.325635 17 99 gestrec10 | 4137836 7.05619 3.603398 1 99 gestrec3 | 4137836 1.879743 .3291709 1 3 obgest_flg | 254452 1 0 1 1 gest_imp | 174560 1 0 1 1 -------------+-------------------------------------------------------- dbwt | 4137836 3268.465 627.1298 227 9999 bwtr12 | 4137836 7.029727 1.222364 1 12 bwtr4 | 4137836 2.905001 .3419378 1 4 ab_aven1 | 0 ab_aven6 | 0 -------------+-------------------------------------------------------- ab_nicu | 0 ab_surf | 0 ab_anti | 0 ab_seiz | 0 ab_binj | 0 -------------+-------------------------------------------------------- ca_anen | 0 ca_mnsb | 0 ca_cchd | 0 ca_cdh | 0 ca_omph | 0 -------------+-------------------------------------------------------- ca_gast | 0 ca_limb | 0 ca_cleft | 0 ca_clpal | 0 ca_down | 0 -------------+-------------------------------------------------------- ca_disor | 0 ca_hypo | 0 uca_anen | 4137836 2.066336 .6788607 1 9 uca_spina | 4137836 2.066269 .6789161 1 9 uca_ompha | 4137836 2.066054 .6790956 1 9 -------------+-------------------------------------------------------- uca_cleftlp | 4137836 2.065727 .6793681 1 9 uca_hernia | 4137836 2.066327 .6788681 1 9 uca_downs | 4137836 2.065966 .6791692 1 9 f_morigin | 4137836 .998273 .0415212 0 1 f_forigin | 4137836 .998273 .0415212 0 1 -------------+-------------------------------------------------------- f_meduc | 4137836 .6591281 .4740024 0 1 f_clinest | 4137836 .998273 .0415212 0 1 f_apgar5 | 4137836 .998273 .0415212 0 1 f_tobaco | 4137836 .5431097 .4981381 0 1 f_pwgt | 4137836 .6591281 .4740024 0 1 -------------+-------------------------------------------------------- f_dwgt | 4137836 .6591281 .4740024 0 1 f_rf_pdiab | 4137836 .6591281 .4740024 0 1 f_rf_gdiab | 4137836 .6591281 .4740024 0 1 f_rf_phyper | 4137836 .6591281 .4740024 0 1 f_rf_ghyper | 4137836 .6591281 .4740024 0 1 -------------+-------------------------------------------------------- f_rf_eclamp | 4137836 .4835682 .49973 0 1 f_rf_ppb | 4137836 .6591281 .4740024 0 1 f_rf_ppo | 4137836 .6591281 .4740024 0 1 f_rf_cesar | 4137836 .6591281 .4740024 0 1 f_rf_ncesar | 4137836 .6591281 .4740024 0 1 -------------+-------------------------------------------------------- f_ob_cervic | 4137836 .6591281 .4740024 0 1 f_ob_toco | 4137836 .6591281 .4740024 0 1 f_ob_succ | 4137836 .6591281 .4740024 0 1 f_ob_fail | 4137836 .6591281 .4740024 0 1 f_ol_rupture | 4137836 .6591281 .4740024 0 1 -------------+-------------------------------------------------------- f_ol_precip | 4137836 .6591281 .4740024 0 1 f_ol_prolong | 4137836 .6591281 .4740024 0 1 f_ld_induct | 4137836 .6591281 .4740024 0 1 f_ld_augment | 4137836 .6591281 .4740024 0 1 f_ld_stero~s | 4137836 .6591281 .4740024 0 1 -------------+-------------------------------------------------------- f_ld_antibio | 4137836 .6591281 .4740024 0 1 f_ld_chorio | 4137836 .6591281 .4740024 0 1 f_ld_mecon | 4137836 .6591281 .4740024 0 1 f_ld_fintol | 4137836 .6591281 .4740024 0 1 f_ld_anesth | 4137836 .6591281 .4740024 0 1 -------------+-------------------------------------------------------- f_md_present | 4137836 .6591281 .4740024 0 1 f_md_route | 4137836 .6591281 .4740024 0 1 f_md_trial | 4137836 .6591281 .4740024 0 1 f_ab_vent | 4137836 .6591281 .4740024 0 1 f_ab_vent6 | 4137836 .6591281 .4740024 0 1 -------------+-------------------------------------------------------- f_ab_nicu | 4137836 .6591281 .4740024 0 1 f_ab_surfac | 4137836 .6591281 .4740024 0 1 f_ab_antibio | 4137836 .6591281 .4740024 0 1 f_ab_seiz | 4137836 .6591281 .4740024 0 1 f_ab_inj | 4137836 .6591281 .4740024 0 1 -------------+-------------------------------------------------------- f_ca_anen | 4137836 .6591281 .4740024 0 1 f_ca_menin | 4137836 .6591281 .4740024 0 1 f_ca_heart | 4137836 .6591281 .4740024 0 1 f_ca_hernia | 4137836 .6591281 .4740024 0 1 f_ca_ompha | 4137836 .6591281 .4740024 0 1 -------------+-------------------------------------------------------- f_ca_gastro | 4137836 .6591281 .4740024 0 1 f_ca_limb | 4137836 .6591281 .4740024 0 1 f_ca_cleftlp | 4137836 .6591281 .4740024 0 1 f_ca_cleft | 4137836 .6591281 .4740024 0 1 f_ca_downs | 4137836 .6591281 .4740024 0 1 -------------+-------------------------------------------------------- f_ca_chrom | 4137836 .6591281 .4740024 0 1 f_ca_hypos | 4137836 .6591281 .4740024 0 1 f_med | 4137836 .3146865 .4643909 0 1 f_wtgain | 4137836 .998273 .0415212 0 1 f_tobac | 4137836 .3146865 .4643909 0 1 -------------+-------------------------------------------------------- f_mpcb | 4137836 .6591281 .4740024 0 1 f_mpcb_u | 4137836 .3146865 .4643909 0 1 f_urf_diab~s | 4137836 .998273 .0415212 0 1 f_urf_chyper | 4137836 .998273 .0415212 0 1 f_urf_phyper | 4137836 .998273 .0415212 0 1 -------------+-------------------------------------------------------- f_urf_eclamp | 4137836 .8227131 .3819113 0 1 f_uob_induct | 4137836 .998273 .0415212 0 1 f_uob_tocol | 4137836 .998273 .0415212 0 1 f_uld_meco~m | 4137836 .998273 .0415212 0 1 f_uld_precip | 4137836 .998273 .0415212 0 1 -------------+-------------------------------------------------------- f_uld_breech | 4137836 .998273 .0415212 0 1 f_u_vag | 4137836 .3146865 .4643909 0 1 f_u_vbac | 4137836 .3146865 .4643909 0 1 f_u_primc | 4137836 .3146865 .4643909 0 1 f_u_repec | 4137836 .3146865 .4643909 0 1 -------------+-------------------------------------------------------- f_u_forcp | 4137836 .998273 .0415212 0 1 f_u_vac | 4137836 .998273 .0415212 0 1 f_uca_anen | 4137836 .998273 .0415212 0 1 f_uca_spina | 4137836 .998273 .0415212 0 1 f_uca_omph~o | 4137836 .998273 .0415212 0 1 -------------+-------------------------------------------------------- f_uca_clef~p | 4137836 .998273 .0415212 0 1 f_uca_downs | 4137836 .998273 .0415212 0 1 by Jean Roth , jroth@nber.org , 22 Dec 2015