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Birth prevalence of disorders detectable through newborn screening by race/ethnicity

Lisa Feuchtbaum1, Jennifer Carter, Sunaina Dowray

  • 1Genetic Disease Screening Program, California Department of Public Health, Richmond, USA. Lisa.Feuchtbaum@cdph.ca.gov

Genetics in Medicine : Official Journal of the American College of Medical Genetics
|July 7, 2012
PubMed

Insights

Newborn screening in California revealed that genetic disorders like congenital hypothyroidism occur at different rates across racial and ethnic groups. This highlights varying heritable disease patterns and needs within diverse populations.

Area of Science:

  • Genetics
  • Public Health
  • Pediatrics

Background:

  • Population-based newborn screening is crucial for early detection of genetic disorders.
  • Understanding the birth prevalence of these conditions across diverse populations is essential for targeted healthcare.
  • California's large, diverse newborn population provides a valuable dataset for epidemiological studies.

Purpose of the Study:

  • To determine the birth prevalence of genetic disorders in California newborns.
  • To analyze how the prevalence of specific genetic disorders varies among different racial and ethnic groups.
  • To establish a baseline for understanding the health needs of diverse communities affected by genetic conditions.

Main Methods:

  • Utilized population-based newborn screening data from California between July 2005 and July 2010.
  • Screened 2,282,138 newborns for metabolic, endocrine, hemoglobin, and cystic fibrosis disorders.
  • Collected race and ethnicity data self-reported by mothers at the time of specimen collection.

Main Results:

  • The overall detection rate for genetic disorders was 1 in 500 births.
  • Primary congenital hypothyroidism was the most prevalent disorder, occurring at a rate of 1 in 1,706 births.
  • Significant variations in birth prevalence for specific genetic disorders were observed across different racial/ethnic groups.

Conclusions:

  • California newborn screening data offer a unique resource for studying genetic disorder prevalence across diverse populations.
  • The findings demonstrate distinct patterns of heritable disease expression among racial/ethnic subgroups.
  • Identifying prevalence variations is a critical first step toward addressing the medical and treatment needs of affected communities.
Abstract

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