Summary statistics for natl2012 dataset : by Jean Roth , jroth@nber.org , 5 May 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- revision | 0 dob_yy | 3,960,796 2012 0 2012 2012 dob_mm | 3,960,796 6.589101 3.413918 1 12 dob_tt | 3,495,710 1245.671 638.2089 0 9999 dob_wk | 3,960,796 4.043102 1.842025 1 7 -------------+--------------------------------------------------------- oterr | 0 ocntyfips | 0 ocntypop | 0 bfacil | 3,495,710 1.030888 .2952064 1 9 ubfacil | 3,960,796 1.033852 .3087296 1 9 -------------+--------------------------------------------------------- bfacil3 | 3,960,796 1.013935 .1174765 1 3 mage_impflg | 436 1 0 1 1 mage_repflg | 31,944 1 0 1 1 mager | 3,960,796 27.98408 6.004925 12 50 mager14 | 3,960,796 9.115638 1.445312 1 14 -------------+--------------------------------------------------------- mager9 | 3,960,796 4.197727 1.235733 1 9 mbcntry | 0 mrterr | 0 mrcnty | 0 rcnty_pop | 0 -------------+--------------------------------------------------------- rectype | 0 restatus | 3,960,796 1.299763 .5147134 1 4 mbrace | 3,526,348 2.018326 3.402703 1 24 mrace | 434,448 3.306548 11.2011 1 78 mracerec | 3,960,796 1.390269 .8215049 1 4 -------------+--------------------------------------------------------- mraceimp | 0 umhisp | 3,960,796 .5636915 1.397236 0 9 mracehisp | 3,960,796 5.429095 2.054001 1 9 mar_p | 0 mar | 3,960,796 1.406912 .4912582 1 2 -------------+--------------------------------------------------------- mar_imp | 1,735 1 0 1 1 meduc | 3,495,710 4.219727 1.816332 1 9 fagerpt_flg | 29,745 1 0 1 1 fagecomb | 3,495,710 39.67752 23.63738 10 99 ufagecomb | 0 -------------+--------------------------------------------------------- fagerec11 | 3,960,796 5.58894 2.459 1 11 fbrace | 3,526,348 20.84999 38.51481 1 99 fracerec | 3,960,796 2.830023 3.081021 1 9 ufhisp | 3,960,796 1.694451 3.157375 0 9 fracehisp | 3,960,796 5.891871 2.285362 1 9 -------------+--------------------------------------------------------- feduc | 3,495,710 4.868344 2.3953 1 9 frace | 434,448 18.24193 36.19407 1 99 priorterm | 3,960,796 1.249349 9.200357 0 99 lbo_rec | 3,960,796 2.122338 1.342104 1 9 tbo_rec | 3,960,796 2.524217 1.680226 1 9 -------------+--------------------------------------------------------- ilpcv_dob | 3,495,710 14.3973 25.66815 0 99 precare | 3,495,710 6.54525 18.0766 0 99 precare_rec | 3,495,710 1.466819 .9268294 1 5 uprevis | 3,960,796 13.98088 15.67078 0 99 previs_rec | 3,960,796 6.960914 2.040419 1 12 -------------+--------------------------------------------------------- wtgain | 3,960,796 33.68367 20.70136 0 99 wtgain_rec | 3,960,796 3.612469 1.702584 1 9 dfpc_imp | 162,526 1 0 1 1 wic | 0 cig_0 | 3,495,710 6.466716 22.02568 0 99 -------------+--------------------------------------------------------- cig_1 | 3,495,710 5.925399 21.93068 0 99 cig_2 | 3,495,710 5.729212 21.91686 0 99 cig_3 | 3,495,710 5.653626 21.9017 0 99 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_inftr | 0 rf_fedrg | 0 rf_artec | 0 rf_cesar | 0 -------------+--------------------------------------------------------- rf_cesarn | 3,495,710 .5676578 6.068104 0 99 urf_diab | 3,960,796 1.964741 .4696532 1 9 urf_chyper | 3,960,796 2.008661 .4216902 1 9 urf_phyper | 3,960,796 1.977412 .4567674 1 9 urf_eclam | 3,960,796 2.020879 .4065018 1 9 -------------+--------------------------------------------------------- ip_gono | 0 ip_syph | 0 ip_chlam | 0 ip_hepatb | 0 ip_hepatc | 0 -------------+--------------------------------------------------------- op_cerv | 0 op_tocol | 0 op_ecvs | 0 op_ecvf | 0 uop_induc | 3,960,796 1.790537 .555276 1 9 -------------+--------------------------------------------------------- uop_tocol | 3,960,796 2.015668 .4331088 1 9 on_ruptr | 0 on_precip | 0 on_prol | 0 ld_indl | 0 -------------+--------------------------------------------------------- ld_augm | 0 ld_ster | 0 ld_anti | 0 ld_chor | 0 ld_mecs | 0 -------------+--------------------------------------------------------- ld_fint | 0 ld_anes | 0 uld_meco | 3,960,796 1.967432 .419106 1 9 uld_precip | 3,960,796 1.998373 .4456486 1 9 uld_breech | 3,960,796 2.127982 1.149072 1 9 -------------+--------------------------------------------------------- me_pres | 0 me_rout | 0 me_trial | 0 ume_forcep | 3,960,796 2.004611 .2843895 1 9 ume_vac | 3,960,796 1.982791 .3200361 1 9 -------------+--------------------------------------------------------- rdmeth_rec | 3,495,710 1.812853 1.183185 1 9 dmeth_rec | 3,960,796 1.340084 .5567199 1 9 mm_mtr | 0 mm_plac | 0 mm_rupt | 0 -------------+--------------------------------------------------------- mm_uhyst | 0 mm_icu | 0 mm_uoper | 0 attend | 3,960,796 1.270931 .7134628 1 9 mtran | 0 -------------+--------------------------------------------------------- pay | 3,495,710 1.946277 1.530887 1 9 pay_rec | 3,495,710 1.809872 1.142809 1 9 apgar5 | 3,960,796 9.189708 5.928635 0 99 apgar5r | 3,960,796 3.842956 .4506419 1 5 apgar10 | 3,495,710 87.09534 8.891114 0 99 -------------+--------------------------------------------------------- apgar10r | 3,495,710 4.97069 .2903676 1 5 dplural | 3,960,796 1.03572 .1931992 1 5 imp_plur | 134 1 0 1 1 sex | 0 imp_sex | 86 1 0 1 1 -------------+--------------------------------------------------------- dlmp_mm | 3,960,796 11.13178 20.22509 1 99 dlmp_yy | 3,960,796 2387.569 1692.427 2010 9999 estgest | 3,960,796 38.6177 3.510139 17 99 combgest | 3,960,796 38.70646 3.173897 17 99 gestrec10 | 3,960,796 7.088663 3.296686 1 99 -------------+--------------------------------------------------------- gestrec3 | 3,960,796 1.885777 .3213148 1 3 obgest_flg | 212,820 1 0 1 1 gest_imp | 119,548 1 0 1 1 dbwt | 3,960,796 3277.732 629.0748 227 9999 bwtr12 | 3,960,796 7.048251 1.224131 1 12 -------------+--------------------------------------------------------- bwtr4 | 3,960,796 2.906977 .3388697 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_downs | 0 ca_disor | 0 ca_hypo | 0 -------------+--------------------------------------------------------- uca_anen | 3,960,796 2.032738 .4785523 1 9 uca_spina | 3,960,796 2.032691 .4786041 1 9 uca_ompha | 3,960,796 2.032465 .4788557 1 9 uca_cleftlp | 3,960,796 2.032155 .4792 1 9 uca_hernia | 3,960,796 2.032731 .4785602 1 9 -------------+--------------------------------------------------------- uca_downs | 3,960,796 2.032366 .478966 1 9 itran | 0 ilive | 0 bfed | 0 bmi | 3,495,710 29.53934 16.26891 13 99.9 -------------+--------------------------------------------------------- bmi_r | 3,495,710 3.10254 1.697242 1 9 illb_r | 3,495,710 424.3031 424.0935 3 999 illb_r11 | 3,495,710 42.11743 41.90601 0 99 ilop_r | 3,495,710 767.6449 312.96 3 999 ilop_r11 | 3,495,710 76.04433 31.04796 0 99 -------------+--------------------------------------------------------- ilp | 3,495,710 442.4172 438.9281 3 999 ilp_r11 | 3,495,710 43.98356 43.32433 0 99 pwgt_r | 3,495,710 184.4946 161.1011 75 999 dwgt_r | 3,495,710 211.456 150.2043 100 999 m_ht_in | 3,495,710 64.85536 5.562385 30 99 -------------+--------------------------------------------------------- setorder_r | 3,495,710 8.743704 1.364184 1 9 f_morigin | 3,960,796 .9979989 .044689 0 1 f_forigin | 3,960,796 .9979989 .044689 0 1 f_meduc | 3,960,796 .8615564 .3453651 0 1 f_feduc | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_clinest | 3,960,796 .9979989 .044689 0 1 f_apgar5 | 3,960,796 .9979989 .044689 0 1 f_tobaco | 3,960,796 .8330038 .3729726 0 1 f_m_ht | 3,960,796 .8615564 .3453651 0 1 f_pwgt | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_dwgt | 3,960,796 .8615564 .3453651 0 1 f_wic | 3,960,796 .8615564 .3453651 0 1 f_pay | 3,960,796 .5500819 .4974855 0 1 f_bfed | 3,960,796 .7343711 .4416676 0 1 f_rf_pdiab | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_rf_gdiab | 3,960,796 .9979989 .044689 0 1 f_rf_phyper | 3,960,796 .8615564 .3453651 0 1 f_rf_ghyper | 3,960,796 .8615564 .3453651 0 1 f_rf_eclamp | 3,960,796 .6836075 .4650681 0 1 f_rf_ppb | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_rf_ppo | 3,960,796 .8615564 .3453651 0 1 f_rf_inft | 3,960,796 .8615564 .3453651 0 1 f_rf_inft_~g | 3,960,796 .7106728 .4534501 0 1 f_rf_inf_art | 3,960,796 .7106728 .4534501 0 1 f_rf_cesar | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_rf_ncesar | 3,960,796 .8615564 .3453651 0 1 f_ip_gonor | 3,960,796 .8615564 .3453651 0 1 f_ip_syph | 3,960,796 .8615564 .3453651 0 1 f_ip_chlam | 3,960,796 .8615564 .3453651 0 1 f_ip_hepatb | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_ip_hepatc | 3,960,796 .8615564 .3453651 0 1 f_ob_cervic | 3,960,796 .8615564 .3453651 0 1 f_ob_toco | 3,960,796 .8615564 .3453651 0 1 f_ob_succ | 3,960,796 .8265929 .3785989 0 1 f_ob_fail | 3,960,796 .8265929 .3785989 0 1 -------------+--------------------------------------------------------- f_on_rupture | 3,960,796 .8615564 .3453651 0 1 f_on_precip | 3,960,796 .8615564 .3453651 0 1 f_on_prolong | 3,960,796 .8615564 .3453651 0 1 f_ld_induct | 3,960,796 .8615564 .3453651 0 1 f_ld_augment | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_ld_stero~s | 3,960,796 .8615564 .3453651 0 1 f_ld_antibio | 3,960,796 .8615564 .3453651 0 1 f_ld_chorio | 3,960,796 .8615564 .3453651 0 1 f_ld_mecon | 3,960,796 .8615564 .3453651 0 1 f_ld_fintol | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_ld_anesth | 3,960,796 .8615564 .3453651 0 1 f_md_present | 3,960,796 .8615564 .3453651 0 1 f_md_route | 3,960,796 .8615564 .3453651 0 1 f_md_trial | 3,960,796 .8615564 .3453651 0 1 f_mm_mtrans | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_mm_lacer | 3,960,796 .8615564 .3453651 0 1 f_mm_ruptur | 3,960,796 .8615564 .3453651 0 1 f_mm_uhystr | 3,960,796 .8615564 .3453651 0 1 f_mm_icu | 3,960,796 .8615564 .3453651 0 1 f_mm_or | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_ab_vent | 3,960,796 .8615564 .3453651 0 1 f_ab_vent6 | 3,960,796 .8615564 .3453651 0 1 f_ab_nicu | 3,960,796 .8615564 .3453651 0 1 f_ab_surfac | 3,960,796 .8615564 .3453651 0 1 f_ab_antibio | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_ab_seiz | 3,960,796 .8615564 .3453651 0 1 f_ab_inj | 3,960,796 .8615564 .3453651 0 1 f_ca_anen | 3,960,796 .8615564 .3453651 0 1 f_ca_menin | 3,960,796 .8615564 .3453651 0 1 f_ca_heart | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_ca_hernia | 3,960,796 .8615564 .3453651 0 1 f_ca_ompha | 3,960,796 .8615564 .3453651 0 1 f_ca_gastro | 3,960,796 .8615564 .3453651 0 1 f_ca_limb | 3,960,796 .8615564 .3453651 0 1 f_ca_cleftlp | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_ca_cleft | 3,960,796 .8615564 .3453651 0 1 f_ca_downs | 3,960,796 .8615564 .3453651 0 1 f_ca_chrom | 3,960,796 .8615564 .3453651 0 1 f_ca_hypos | 3,960,796 .8615564 .3453651 0 1 f_wtgain | 3,960,796 .9979989 .044689 0 1 -------------+--------------------------------------------------------- f_api | 0 f_mar_g | 3,960,796 .8615564 .3453651 0 1 f_mar_p | 3,960,796 .8615564 .3453651 0 1 f_mpcb | 3,960,796 .8615564 .3453651 0 1 f_tpcv | 3,960,796 .9979989 .044689 0 1 -------------+--------------------------------------------------------- f_cigs_0 | 3,960,796 .8330038 .3729726 0 1 f_cigs_1 | 3,960,796 .8330038 .3729726 0 1 f_cigs_2 | 3,960,796 .8330038 .3729726 0 1 f_cigs_3 | 3,960,796 .8330038 .3729726 0 1 f_facility | 3,960,796 .8615564 .3453651 0 1 -------------+--------------------------------------------------------- f_pay_rec | 3,960,796 .8615564 .3453651 0 1 f_rdmeth_rec | 3,960,796 .8615564 .3453651 0 1 f_urf_diab~s | 3,960,796 .9979989 .044689 0 1 f_urf_chyper | 3,960,796 .9979989 .044689 0 1 f_urf_phyper | 3,960,796 .9979989 .044689 0 1 -------------+--------------------------------------------------------- f_urf_eclamp | 3,960,796 .8200501 .3841458 0 1 f_ilpcv_dob | 0 f_uob_induct | 3,960,796 .9979989 .044689 0 1 f_uob_tocol | 3,960,796 .9979989 .044689 0 1 f_uld_meco~m | 3,960,796 .9979989 .044689 0 1 -------------+--------------------------------------------------------- f_uld_precip | 3,960,796 .9979989 .044689 0 1 f_uld_breech | 3,960,796 .9979989 .044689 0 1 f_u_forcep | 3,960,796 .9979989 .044689 0 1 f_u_vac | 3,960,796 .9979989 .044689 0 1 f_uca_anen | 3,960,796 .9979989 .044689 0 1 -------------+--------------------------------------------------------- f_uca_spina | 3,960,796 .9979989 .044689 0 1 f_uca_omph~o | 3,960,796 .9979989 .044689 0 1 f_uca_clef~p | 3,960,796 .9979989 .044689 0 1 f_uca_hernia | 3,960,796 .9979989 .044689 0 1 f_uca_downs | 3,960,796 .9979989 .044689 0 1 by Jean Roth , jroth@nber.org , 5 May 2016