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
Births2022A data frame with 20,000 observations on the following 38 variables. The unit of observation is a birth.
month: 1-12
dow: 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 as meduc.
married: Is the mother married?
mage: mother's age
fage: father's age
total_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 inches
wt_pre: Mother's weight in pounds before pregnancy
wt_delivery: Mother's weight in pounds at delivery
diabetes_pre: Did the mother have diabetes before pregnancy
diabetes_gest: Did the mother develop gestational diabetes
hbp_pre: Did the mother have high blood pressure before pregancy
hbp_gest: Did the mother develop high blood pressure during pregnancy
eclampsia: Did the mother develop eclampsia
induction: 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, other
payment: 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 sex
duration: 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 report
breastfed: Baby breastfed at time of discharge
"User Guide to the 2022 Natality Public Use File"