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Genet Med. 2012 Nov;14(11):937-45. doi: 10.1038/gim.2012.76. Epub 2012 Jul 5.

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

Author information

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

Abstract

PURPOSE:

The purpose of this study was to describe the birth prevalence of genetic disorders among different racial/ethnic groups through population-based newborn screening data.

METHODS:

Between 7 July 2005 and 6 July 2010 newborns in California were screened for selected metabolic, endocrine, hemoglobin, and cystic fibrosis disorders using a blood sample collected via heel stick. The race and ethnicity of each newborn was self-reported by the mother at the time of specimen collection.

RESULTS:

Of 2,282,138 newborns screened, the overall disorder detection rate was 1 in 500 births. The disorder with the highest prevalence among all groups was primary congenital hypothyroidism (1 in 1,706 births). Birth prevalence for specific disorders varied widely among different racial/ethnic groups.

CONCLUSION:

The California newborn screening data offer a unique opportunity to explore the birth prevalence of many genetic disorders across a wide spectrum of racial/ethnicity classifications. The data demonstrate that racial/ethnic subgroups of the California newborn population have very different patterns of heritable disease expression. Determining the birth prevalence of these disorders in California is a first step to understanding the short- and long-term medical and treatment needs faced by affected communities, especially those groups that are impacted by more severe disorders.

PMID:
22766612
DOI:
10.1038/gim.2012.76
[Indexed for MEDLINE]
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