HFE genotypes for families 1 and 2 and affected patients from families 23, 24, 25, and 27
| Family | Subject | Exon 4 C282Y | Exon 2 H63D | Exon 2 S65C | Intron 2 4T→C | Intron 4 116T→C |
| 1 | 1 (father) | −/− | +/− | −/− | +/− | −/− |
| 1 | 2 (mother) | −/− | −/− | +/− | +/− | +/− |
| 1 | 4 (unaffected) | −/− | +/− | +/− | +/+ | +/− |
| 1 | 5 (affected) | −/− | −/− | +/− | +/− | +/− |
| 1 | 6 (unaffected) | −/− | −/− | −/− | −/− | −/− |
| 2 | 1 (father) | −/− | +/− | −/− | +/− | −/− |
| 2 | 2 (mother) | −/− | −/− | −/− | −/− | −/− |
| 2 | 3 (affected) | −/− | +/− | −/− | +/− | −/− |
| 2 | 4 (affected) | −/− | +/− | −/− | +/− | −/− |
| 23 | 3 (affected) | −/− | +/+ | −/− | −/− | −/− |
| 23 | 4 (affected) | −/− | +/+ | −/− | −/− | −/− |
| 24 | 4 (affected) | −/− | +/+ | −/− | −/− | −/− |
| 25 | 4 (affected) | −/− | +/− | −/− | +/− | −/− |
| 27 | 3 (affected) | −/− | +/+ | −/− | −/− | −/− |