Diagnosis of hemochromatosis in family members of probands: a comparison of phenotyping and HFE genotyping.

Barton, J C; Rothenberg, B E; Bertoli, L F; Acton, R T · Genet Med · 1999

case_control · Level III

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Abstract

We wanted to compare phenotyping and HFE genotyping for diagnosis of hemochromatosis in 150 family members of 61 probands. Phenotypes were defined by persistent transferrin saturation elevation, iron overload, or both; genotypes were defined by HFE mutation analysis. Twenty-five family members were C282Y homozygotes; 23 of these (92%) had a hemochromatosis phenotype. Twenty-three family members had HFE genotype C282Y/H63D; eight of these (35%) had a hemochromatosis phenotype. Six of 102 (6%) family members who inherited other HFE genotypes had a hemochromatosis phenotype. Phenotyping and genotyping are complementary in diagnosing hemochromatosis among family members of probands.

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