Maternal Age <15
Maternal Age 15-17
Maternal Age 18-19
Maternal Age 20-24
Maternal Age 25-29
Maternal Age 30-34
Maternal Age 35-39
Maternal Age 40-44
Maternal Age 45+
Maternal Race/Ethnicity Hispanic
Maternal Race/Ethnicity Asian/PI
Maternal Race/Ethnicity NH White
Maternal Race/Ethnicity NH Black
US-born
Foreign-born
Maternal Ancestry African American
Maternal Ancestry Puerto Rican
Maternal Ancestry Dominican
Maternal Ancestry Mexican
Maternal Ancestry Chinese
Maternal Ancestry Jewish or Hebrew
Maternal Ancestry American
Maternal Ancestry Italian
Maternal Ancestry Ecuadorian
Maternal Ancestry Irish
Maternal Ancestry Jamaican
Maternal Ancestry Russian
Maternal Ancestry Guyanese
Maternal Ancestry Indian
Maternal Ancestry Other
Maternal Birthplace United States
Maternal Birthplace Dominican Republic
Maternal Birthplace Mexico
Maternal Birthplace China
Maternal Birthplace Jamaica
Maternal Birthplace Ecuador
Maternal Birthplace Guyana
Maternal Birthplace Trinidad/Tobago
Maternal Birthplace Haiti
Maternal Birthplace India
Maternal Birthplace Bangladesh
Maternal Birthplace Pakistan
Maternal Birthplace Israel
Maternal Birthplace Colombia
Maternal Birthplace Korea
Maternal Birthplace Other
Parity First Live Birth
Parity Not First Live Birth
Derived Not Married
Derived Married
Sex Male
Sex Female
Pre-Preg BMI Underweight <18.5
Pre-Preg BMI Normal 18.5-<25
Pre-Preg BMI Overweight 25-<30
Pre-Preg BMI Obese 30+
Infant Birthweight <500g
Infant Birthweight 500-999g
Infant Birthweight 1000-1499g
Infant Birthweight 1500-1999g
Infant Birthweight 2000-2499g
Infant Birthweight 2500-2999g
Infant Birthweight 3000-3499g
Infant Birthweight 3500-3999g
Infant Birthweight 4000+g
Infant Gestational Age <28 weeks
Infant Gestational Age 28-31 weeks
Infant Gestational Age 32-33 weeks
Infant Gestational Age 34-36 weeks
Infant Gestational Age 37+ weeks
Five Minute Apgar Score <=6
Five Minute Apgar Score 7
Five Minute Apgar Score 8
Five Minute Apgar Score 9
Five Minute Apgar Score 10
One of multiple births
Method of Delivery Vaginal no prior c/s
Method of Delivery Vaginal after prior c/s
Method of Delivery Primary c/s
Method of Delivery Repeat c/s
Place of Birth Home
Place of Birth Voluntary hospital
Place of Birth Municipal hospital
Place of Birth Birthing center
Place of Birth Other
Infant Fed Breast Milk Only
Infant Fed Other