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Racial Disparities in Genetic Detection Rates for Inherited Retinal Diseases.

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Summary
This summary is machine-generated.

Black patients with inherited retinal diseases (IRDs) show lower genetic detection rates using wide-panel genetic testing compared to White patients. This disparity may impact access to prognostication, counseling, and potential therapeutics.

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Area of Science:

  • Ophthalmology
  • Genetics
  • Medical Diagnostics

Background:

  • Wide-panel genetic testing is crucial for diagnosing inherited retinal diseases (IRDs).
  • Previous studies have not examined racial disparities in genetic detection rates for IRDs.

Purpose of the Study:

  • To compare genetic detection rates between Black and non-Hispanic White patients with IRDs using wide-panel testing.
  • To identify potential disparities in genetic diagnosis based on race.

Main Methods:

  • Retrospective analysis of patient data from the University of Michigan and Blueprint Genetics.
  • Inclusion criteria: clinical IRD diagnosis, wide-panel genetic testing, and self-identified race.
  • Logistic regression and chi-squared tests were used to compare detection rates between racial groups.

Main Results:

  • Black patients had significantly lower odds of a positive genetic test result compared to White patients (OR, 0.25; P < .001).
  • In the Blueprint Genetics database, 44.4% of Black patients had a positive test result, versus 57.7% of White patients (P < .001).
  • Age was also associated with decreased odds of a positive test.

Conclusions:

  • This study highlights a lower genetic detection rate in Black patients with IRDs, suggesting potential inequities.
  • Disparities in genetic diagnosis can affect patient care, including prognostication, genetic counseling, and eligibility for clinical trials.
  • Further research is needed to examine genetic detection rates across diverse racial and ethnic subgroups to ensure equitable access to IRD diagnostics and therapeutics.