NJ Birth Data Query Outcome Measure Selection
How to select a measure
- Select a measure of interest from those listed below. Click its text link to go to the corresponding query builder page.
- For further explanation of the measures, hover your cursor over the selection bar and a description of the measure will appear. Question mark bubbles to the right of some items provide additional information for those measures.
- Birth dataset help and documentation
2016 data have been updatedto include previously missing or incorrect method of delivery, prenatal care, ethnicity, and marital status information for NJ resident births that occurred out of state. (Sept. 2018) 2017 data are preliminary.We plan to officially close out the 2017 birth data file in March, 2019 but are confident that the data included in the query will change little between now and then. (Nov. 2018)
Birth RateBirth rate is the number of live births per 1,000 persons in the population.
Age-Specific Birth Rates (Adolescent Birth Rates)An age-specific birth rate is the number of births to women in a certain age group per 1,000 women in that same age group (e.g., births to adolescent mothers per 1,000 adolescent girls of the same age in the population).
- Fertility Rate
Fertility RateFertility Rate: Live Births per 1,000 Female Population (Limit mother's age for age-specific fertility rate)
Age-Specific Fertility Rate: The number of live births to women in a certain age group, per 1,000 women in that age group. e.g., Live births to adolescent mothers per 1,000 adolescent girls of the same age in the population.
- General Fertility Rate
General Fertility RateThe general fertility rate is the number of live births per 1,000 females of childbearing age between the ages of 15-44 years. (The age range used can vary, depending on who is reporting the information. So it is important to note what age range is being used if you plan to compare these rates with those in other reports).
- Total Fertility Rate
Total Fertility RateThe total fertility rate is the sum of the age-specific birth rates of women in five-year age groups multiplied by five. This rate estimates the number of children a cohort of 1,000 women would bear if they all went through their childbearing years exposed to the same age-specific birth rates in effect for a particular time.
Prenatal Care RecommendationsIt is recommended that pregnant women begin prenatal care during their first three months (first trimester) of pregnancy.
- Percentage With Kotelchuck Prenatal Care=Adequate
- Average Number of Prenatal Visits
Number of Prenatal Care VisitsACOG recommends the following prenatal care visit schedule:
1 visit per month (every 4 weeks) until week 28
2 visits per month (every 2 to 3 weeks) from weeks 28 to 36
1 visit per week from week 36 until birth
Certain medical conditions in pregnancy may necessitate more visits.
Birth WeightVery Low Birth Weight: Live-born infants whose birth weight was less than 1500 grams (about 3.3 lbs.)
Low Birth Weight: Live-born infants whose birth weight was less than 2500 grams (about 5.5 lbs.)
Normal Birth Weight: Live-born infants whose birth weight was at least 2500 grams but less than 4,000 grams
High Birth Weight: Live-born infants whose birth weight was greater than 4,000 grams (about 8.8 lbs.)
- Average Birthweight of Infants
- Percentage of All Preterm Births (<37 weeks)
Preterm BirthsA preterm birth is a birth that occurs before the 37th week of gestation.
- Average Gestational Age of Infants
Gestational AgeGestational Age is the period of time a baby is carried in the uterus or the duration of the pregnancy, measured from the first day of the last menstrual period. Full-term gestation is between 37 and 42 weeks.
- Cesarean Delivery Rate
Cesarean RateThe percentage of infants delivered by c-section among all live births.
- Low Risk Cesarean Delivery Rate
Low Risk Cesarean RateThe percentage of infants delivered by c-section among all live nulliparous (first birth), full term (37 completed weeks or more, based on the obstetric estimate), singleton (one fetus), vertex (head first) births.
- Primary Cesarean Delivery Rate
Primary Cesarean RateThe percentage of infants delivered by c-section among all live births to mothers who never had a c-section before.
- Vaginal Birth After Cesarean (VBAC) Delivery Rate
VBAC RateThe percentage of infants delivered vaginally among all live births to mothers who previously had a c-section.