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SCHS: Birth Defects Data

The North Carolina Birth Defects Monitoring Program (NCBDMP) gathers data on infants who are born with serious congenital anomalies (birth defects) diagnosed within the first year of life. Data are collected by trained field staff who systematically review and abstract, or summarize, hospital medical records. These data are supplemented with information from administrative health databases such as hospital discharge data, vital records, Medicaid claims and other sources. This intensive method of case ascertainment provides complete, accurate and timely data on the incidence of birth defects in the state.

The NCBDMP provides data about birth defects in North Carolina to researchers, health care providers, public health program planners, community organizations and interested citizens. These data are often used to inform public health prevention and evaluation efforts, provide health education, raise public awareness, support patient advocacy, support health care service referral and delivery, and conduct studies to understand the causes of birth defects so that cases of birth defects can be prevented in the future.

The most commonly requested data about birth defects in North Carolina is found on the North Carolina Health Data Query System, which is a web-based interactive database system that provides customized reports of health data based on demographic variables like age, race and county. You can also find data on pregnancies and births in North Carolina.

N.C. Health Data Query System - 03/12/25

On the N.C. Health Data Query System, you can find data about:

  • Birth Defects, Statewide Totals (2005-2022) - Provides birth defect counts for infants who were North Carolina residents at the time of birth classified by the mother's race/ethnicity and year.
  • Birth Defects by Region (2005-2022) - Provides birth defect counts for infants who were North Carolina residents at the time of birth, classified by perinatal care region, mother's race/ethnicity and year.
  • Birth Defects by County (2005-2022) - Provides birth defect counts for infants who were North Carolina residents at the time of birth, classified by county and year.

Fact Sheets - 04/28/25

North Carolina Statewide Fact Sheets

Birth Defects in North Carolina, 2018-2022

Perinatal Care Region Fact Sheets

2018-2022 - 03/18/25

2017-2021 - 04/28/25

2016-2020 - 04/28/25

Frequency of Selected Birth Defects in North Carolina

Birth Defect Frequency
Hypospadias 1 in 183 male live births
Ventricular septal defect 1 in 242 live births
Cleft lip and palate 1 in 662 live births
Down Syndrome 1 in 826 live births
Neural tube defect (all types) 1 in 1,234 live births
Limb reduction defects 1 in 1,863 live births
Renal agenesis/hyplasia 1 in 1,490 live births
Tetralogy of Fallot 1 in 2,497 live births
Transposition of Great Arteries 1 in 3,994 live births

Last Modified: September 4, 2025