Summary statistics for natl2007 dataset : by Jean Roth , jroth@nber.org , 22 Dec 2015 Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- revision | 0 dob_yy | 4324008 2007 0 2007 2007 dob_mm | 4324008 6.56349 3.418992 1 12 dob_wk | 4324008 4.061372 1.832397 1 7 oterr | 0 -------------+-------------------------------------------------------- ocntyfips | 0 ocntypop | 0 bfacil | 2388236 1.025111 .278863 1 9 ubfacil | 4324008 1.024263 .2656842 1 9 bfacil3 | 4324008 1.009854 .0993551 1 3 -------------+-------------------------------------------------------- mage_impflg | 450 1 0 1 1 mage_repflg | 148041 1 0 1 1 mager | 4324008 27.36738 6.155927 12 50 mager14 | 4324008 8.953308 1.549103 1 14 mager9 | 4324008 4.073585 1.266557 1 9 -------------+-------------------------------------------------------- mbcntry | 0 mrterr | 0 mrcnty | 0 rcnty_pop | 0 rectype | 0 -------------+-------------------------------------------------------- restatus | 4324008 1.289536 .5084489 1 4 mbrace | 2636932 1.859793 3.140563 1 24 mrace | 1687076 3.251861 11.23607 1 78 mracerec | 4324008 1.355856 .7781081 1 4 mraceimp | 0 -------------+-------------------------------------------------------- umhisp | 4324008 .532614 1.299081 0 9 mracehisp | 4324008 5.282198 2.153543 1 9 mar | 4324008 1.397107 .4892986 1 2 mar_imp | 1900 1 0 1 1 meduc | 2388236 3.915672 1.820905 1 9 -------------+-------------------------------------------------------- dmeduc | 1935772 14.07164 9.43509 0 99 meduc_rec | 1935772 3.585309 1.207473 1 6 fagerpt_flg | 130773 1 0 1 1 fagecomb | 2388236 39.4009 24.10673 9 99 ufagecomb | 4324008 40.30276 24.84862 10 99 -------------+-------------------------------------------------------- fagerec11 | 4324008 5.600929 2.568291 1 11 fbrace | 2636932 20.41364 38.30347 1 99 fracerec | 4324008 2.764584 3.063017 1 9 ufhisp | 4324008 1.725899 3.181791 0 9 fracehisp | 4324008 5.775532 2.40481 1 9 -------------+-------------------------------------------------------- frace | 1687076 20.34678 38.05641 1 99 lbo_rec | 4324008 2.10205 1.313259 1 9 tbo_rec | 4324008 2.470523 1.624437 1 9 dllb_mm | 4324008 67.94484 41.41281 1 99 dllb_yy | 4324008 7181.063 3593.724 1973 9999 -------------+-------------------------------------------------------- precare | 2388236 8.127943 21.47055 0 99 precare_rec | 2388236 1.57295 1.042704 1 5 mpcb | 1935772 4.554436 13.95843 0 99 mpcb_rec6 | 1935772 1.704245 1.093269 1 6 mpcb_rec5 | 1935772 1.306917 .7654002 1 5 -------------+-------------------------------------------------------- uprevis | 4324008 14.10396 16.4066 0 99 previs_rec | 4324008 6.899218 2.089607 1 12 apncu | 0 wtgain | 4324008 35.02967 21.73547 0 99 wtgain_rec | 4324008 4.673919 2.443789 1 9 -------------+-------------------------------------------------------- u_apncu | 0 dfpc_imp | 207436 1 0 1 1 cig_1 | 2388236 12.77981 31.93839 0 99 cig_2 | 2388236 12.53344 31.94707 0 99 cig_3 | 2388236 12.48603 31.96504 0 99 -------------+-------------------------------------------------------- tobuse | 1935772 1.931399 .5121142 1 9 cigs | 1935772 1.384453 8.135507 0 99 cig_rec6 | 1935772 .2002798 .7238536 0 6 cig_rec | 0 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 | 2388236 .8734757 8.332474 0 99 urf_diab | 4324008 1.989807 .5337926 1 9 urf_chyper | 4324008 2.023419 .5008766 1 9 -------------+-------------------------------------------------------- urf_phyper | 4324008 1.995796 .5282338 1 9 urf_eclam | 4324008 2.031906 .4918544 1 9 op_cerv | 0 op_tocol | 0 op_ecvs | 0 -------------+-------------------------------------------------------- op_ecvf | 0 uop_induc | 4324008 1.806145 .6460791 1 9 uop_tocol | 4324008 2.029063 .5689965 1 9 on_ruptr | 0 on_precip | 0 -------------+-------------------------------------------------------- on_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 | 4324008 1.991673 .5360993 1 9 uld_precip | 4324008 2.023633 .5804364 1 9 uld_breech | 4324008 2.129552 1.151209 1 9 me_attf | 0 me_attv | 0 -------------+-------------------------------------------------------- me_pres | 0 me_rout | 0 me_trial | 0 ume_vag | 1935772 1.362633 .77557 1 9 ume_vbac | 1935772 2.036555 .5766166 1 9 -------------+-------------------------------------------------------- ume_primc | 1935772 1.861966 .6995423 1 9 ume_repec | 1935772 1.920908 .6657443 1 9 ume_forcep | 4324008 2.018145 .4322622 1 9 ume_vac | 4324008 1.991058 .4628032 1 9 rdmeth_rec | 2388236 1.797986 1.184234 1 9 -------------+-------------------------------------------------------- udmeth_rec | 1935772 1.807486 1.28329 1 9 dmeth_rec | 4324008 1.346052 .6569812 1 9 attend | 4324008 1.245614 .6924688 1 9 apgar5 | 4324008 9.548757 7.980375 0 99 apgar5r | 4324008 3.867022 .4280284 1 5 -------------+-------------------------------------------------------- dplural | 4324008 1.035303 .1938871 1 5 imp_plur | 157 1 0 1 1 sex | 0 imp_sex | 81 1 0 1 1 dlmp_mm | 4324008 11.46116 20.87596 1 99 -------------+-------------------------------------------------------- dlmp_dd | 4324008 23.27931 26.1593 1 99 dlmp_yy | 4324008 2414.55 1759.759 2005 9999 estgest | 4324008 38.72822 4.676878 1 99 combgest | 4324008 38.63105 3.51625 17 99 gestrec10 | 4324008 6.33819 1.154112 1 10 -------------+-------------------------------------------------------- gestrec3 | 4324008 1.875012 .3354656 1 3 obgest_flg | 251403 1 0 1 1 gest_imp | 188792 1 0 1 1 dbwt | 4324008 3269.869 633.1072 227 9999 bwtr12 | 4324008 7.031368 1.228981 1 12 -------------+-------------------------------------------------------- bwtr4 | 4324008 2.904114 .344345 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 | 4324008 2.090828 .7927921 1 9 uca_spina | 4324008 2.09078 .7928278 1 9 uca_ompha | 4324008 2.090571 .7929837 1 9 uca_cleftlp | 4324008 2.090199 .7932607 1 9 uca_downs | 4324008 2.090476 .7930543 1 9 -------------+-------------------------------------------------------- f_morigin | 4324008 .9982081 .0422924 0 1 f_forigin | 4324008 .9982081 .0422924 0 1 f_meduc | 4324008 .5319657 .4989772 0 1 f_clinest | 4324008 .9982084 .0422897 0 1 f_apgar5 | 4324008 .9982084 .0422897 0 1 -------------+-------------------------------------------------------- f_tobaco | 4324008 .4766548 .4994548 0 1 f_rf_pdiab | 4324008 .5319657 .4989772 0 1 f_rf_gdiab | 4324008 .5319657 .4989772 0 1 f_rf_phyper | 4324008 .5319657 .4989772 0 1 f_rf_ghyper | 4324008 .5319657 .4989772 0 1 -------------+-------------------------------------------------------- f_rf_eclamp | 4324008 .416194 .4929266 0 1 f_rf_ppb | 4324008 .5319657 .4989772 0 1 f_rf_ppo | 4324008 .5319657 .4989772 0 1 f_rf_cesar | 4324008 .5319657 .4989772 0 1 f_rf_ncesar | 4324008 .5319657 .4989772 0 1 -------------+-------------------------------------------------------- f_ob_cervic | 4324008 .5319657 .4989772 0 1 f_ob_toco | 4324008 .5319657 .4989772 0 1 f_ob_succ | 4324008 .5319657 .4989772 0 1 f_ob_fail | 4324008 .5319657 .4989772 0 1 f_on_rupture | 4324008 .5319657 .4989772 0 1 -------------+-------------------------------------------------------- f_on_precip | 4324008 .5319657 .4989772 0 1 f_on_prolong | 4324008 .5319657 .4989772 0 1 f_ld_induct | 4324008 .5319657 .4989772 0 1 f_ld_augment | 4324008 .5319657 .4989772 0 1 f_ld_nvrtx | 4324008 .5319657 .4989772 0 1 -------------+-------------------------------------------------------- f_ld_stero~s | 4324008 .5319657 .4989772 0 1 f_ld_antibio | 4324008 .5319657 .4989772 0 1 f_ld_chorio | 4324008 .5319657 .4989772 0 1 f_ld_mecon | 4324008 .5319657 .4989772 0 1 f_ld_fintol | 4324008 .5319657 .4989772 0 1 -------------+-------------------------------------------------------- f_ld_anesth | 4324008 .5319657 .4989772 0 1 f_md_attfor | 4324008 .5319657 .4989772 0 1 f_md_attvac | 4324008 .5319657 .4989772 0 1 f_md_present | 4324008 .5319657 .4989772 0 1 f_md_route | 4324008 .5319657 .4989772 0 1 -------------+-------------------------------------------------------- f_md_trial | 4324008 .5319657 .4989772 0 1 f_ab_vent | 4324008 .5319657 .4989772 0 1 f_ab_vent6 | 4324008 .5319657 .4989772 0 1 f_ab_nicu | 4324008 .5319657 .4989772 0 1 f_ab_surfac | 4324008 .5319657 .4989772 0 1 -------------+-------------------------------------------------------- f_ab_antibio | 4324008 .5319657 .4989772 0 1 f_ab_seiz | 4324008 .5319657 .4989772 0 1 f_ab_inj | 4324008 .5319657 .4989772 0 1 f_ca_anen | 4324008 .5319657 .4989772 0 1 f_ca_menin | 4324008 .5319657 .4989772 0 1 -------------+-------------------------------------------------------- f_ca_heart | 4324008 .5319657 .4989772 0 1 f_ca_hernia | 4324008 .5319657 .4989772 0 1 f_ca_ompha | 4324008 .5319657 .4989772 0 1 f_ca_gastro | 4324008 .5319657 .4989772 0 1 f_ca_limb | 4324008 .5319657 .4989772 0 1 -------------+-------------------------------------------------------- f_ca_cleftlp | 4324008 .5319657 .4989772 0 1 f_ca_cleft | 4324008 .5319657 .4989772 0 1 f_ca_downs | 4324008 .5319657 .4989772 0 1 f_ca_chrom | 4324008 .5319657 .4989772 0 1 f_ca_hypos | 4324008 .5319657 .4989772 0 1 -------------+-------------------------------------------------------- f_med | 4324008 .4023207 .490366 0 1 f_wtgain | 4324008 .9982081 .0422924 0 1 f_tobac | 4324008 .4023209 .490366 0 1 f_mpcb | 4324008 .5319657 .4989772 0 1 f_mpcb_u | 4324008 .4023209 .490366 0 1 -------------+-------------------------------------------------------- f_urf_diab~s | 4324008 .9982084 .0422897 0 1 f_urf_chyper | 4324008 .9982084 .0422897 0 1 f_urf_phyper | 4324008 .9982084 .0422897 0 1 f_urf_eclamp | 4324008 .8824366 .3220904 0 1 f_uob_induct | 4324008 .9982084 .0422897 0 1 -------------+-------------------------------------------------------- f_uob_tocol | 4324008 .9982084 .0422897 0 1 f_uld_meco~m | 4324008 .9982084 .0422897 0 1 f_uld_precip | 4324008 .9982084 .0422897 0 1 f_uld_breech | 4324008 .9982084 .0422897 0 1 f_u_vag | 4324008 .4023209 .490366 0 1 -------------+-------------------------------------------------------- f_u_vbac | 4324008 .4023209 .490366 0 1 f_u_primc | 4324008 .4023209 .490366 0 1 f_u_repec | 4324008 .4023209 .490366 0 1 f_u_forcep | 4324008 .9982084 .0422897 0 1 f_u_vac | 4324008 .9982084 .0422897 0 1 -------------+-------------------------------------------------------- f_uca_anen | 4324008 .9911279 .093773 0 1 f_uca_spina | 4324008 .9911279 .093773 0 1 f_uca_omph~o | 4324008 .9911279 .093773 0 1 f_uca_clef~p | 4324008 .9911279 .093773 0 1 f_uca_downs | 4324008 .9911279 .093773 0 1 by Jean Roth , jroth@nber.org , 22 Dec 2015