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Color vision deficiency manifests in non-Hispanic white boys more than in other ethnic groups
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Prevalence of color vision deficiency was greater among non-Hispanic white boys than among other ethnic groups of preschool-aged children, according to a Southern California-based study. Black children were least affected.
Of the children aged 30 months to 72 months in the Multi-Ethnic Pediatric Eye Disease Study, a population-based, cross-sectional study, 4,177 completed color vision testing: 1,265 were black, 812 were Asian, 1,280 were Hispanic and 820 were non-Hispanic white.
Prevalence of color vision deficiency in boys was 1.4% for blacks, 3.1% for Asians, 2.6% for Hispanics and 5.6% for non-Hispanic whites. The difference between prevalence in non-Hispanic white children and black children was statistically significant (P < .0003). Prevalence of color vision deficiency in girls of all ethnicities ranged up to 0.5%.
Testability of the subjects increased with age — 17% for subjects younger than 37 months, 57% for subjects 37 to 48 months, 89% for subjects 49 to 60 months and 98% for subjects 61 to 72 months.
“We believe our findings are likely generalizable to most black, Hispanic, non-Hispanic white and Asian children in the United States,” the study authors said.
Disclosure: The authors have no relevant financial disclosures.
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