Table 1

 HFE genotypes among the neonate population (all ethnic groups)

GenotypeObserved (n = 7038)Expectedp
Results are n (%). p value: χ2 analysis for all genotypes. Y allele frequency is 0.0494, 95% CI 0.047 to 0.0548; D allele frequency is 0.181, 95% CI 0.172 to 0.190. Ethnic group was self reported. *Genotype frequencies for C282Y and H63D variants were each in Hardy-Weinberg equilibrium; however, increased frequency of double heterozygotes (HD/CY) was observed owing to partial linkage disequilibrium (p<0.001) between these variants.
HH/CC4195 (59.61)4173 (59.30)0.6
HD/CC1952 (27.74)1962 (27.90)0.76
HH/CY491 (6.97)531 (7.54)0.07
DD/CC215 (3.05)230 (3.25)0.35
HD/CY166 (2.36)125 (1.77)<0.001*
HH/YY19 (0.27)17 (0.24)0.61