These data come from the Centers for Disease Controls "public use file" recording
all 3,699,040 (known) births in the US in 2022. Births2022
is a random
sample of size 20,000 from the comprehensive file
Format
A data frame with 20,000 observations on the following 38 variables. The unit of observation is a birth.
month
: 1-12dow
: Day of week: Sun, Mon, Tues, ...place
: hospital, home, clinic, etc.paternity
: is paternity acknowledged. Y, N, and X. X stands for "not applicable" which is shorthand for the mother is married (consequently the husband is presumed to be the father).meduc
: mother's educational level. <8 is 8th grade or less, HSG+ means high school plus some college but no degree.feduc
: father's education. Same coding asmeduc
.married
: Is the mother married?mage
: mother's agefage
: father's agetotal_kids
: how many total births to mother including this one.interval
: months since last birth (if applicable).prenatal_start
: Which trimester did the mother start prenatal care?prenatal_visits
: How many total prenatal care visits.mheight
: Mother's height in incheswt_pre
: Mother's weight in pounds before pregnancywt_delivery
: Mother's weight in pounds at deliverydiabetes_pre
: Did the mother have diabetes before pregnancydiabetes_gest
: Did the mother develop gestational diabeteshbp_pre
: Did the mother have high blood pressure before pregancyhbp_gest
: Did the mother develop high blood pressure during pregnancyeclampsia
: Did the mother develop eclampsiainduction
: Was labor induced?augmentation
: Was the uterus stimulated to increase frequency, duration, and intensity of contractions.anesthesia
: Was the mother given anesthesia?presentation
: Baby's presentation at birth (e.g. cephalic or breech)method
: method of delivery (vaginal or C-section)trial_at_labor
: For mother's who delivered by C-section, was there an attempt at labor.attendant
: MD, DO, midwife, otherpayment
: How was the bill paid?apgar5
,apgar10
: APGAR scores (0-10) at five and ten minutes after birth.plurality
: singletons, twins, triplets, quadruplets (as an integer 1-4)sex
: Baby's sexduration
: Duration of gestation, in weeks by "obstretric estimate."menses
: Last normal menses month: 1-12 (Jan-Dec)weight
: Baby's weight (in grams)living
: Baby living at time of birth reportbreastfed
: Baby breastfed at time of discharge