| | | Copy number gain | See cases | |
| | | Single nucleotide variant | not provided +1 more | |
| | | Single nucleotide variant | not specified +1 more | |
| | | Single nucleotide variant (3 prime UTR variant) | beta Thalassemia +1 more | GConflicting classifications of pathogenicity |
| | HBB, LOC107133510 +1 more (E122Q) | Single nucleotide variant (missense variant) | HBB-related disorder +5 more | GPathogenic/Likely pathogenic |
| | HBB, LOC107133510 +1 more (G120D) | Single nucleotide variant (missense variant) | not specified +1 more | GConflicting classifications of pathogenicity |
| | HBB, LOC107133510 +1 more (V114E) | Single nucleotide variant (missense variant) | not provided +1 more | GConflicting classifications of pathogenicity |
| | | Single nucleotide variant (splice acceptor variant) | beta Thalassemia +10 more | |
| | | Single nucleotide variant (intron variant) | HBB-related disorder +11 more | GPathogenic/Likely pathogenic |
| | | Single nucleotide variant (intron variant) | beta Thalassemia +1 more | GPathogenic/Likely pathogenic |
| | | Single nucleotide variant (intron variant) | beta Thalassemia +10 more | GPathogenic/Likely pathogenic |
| | | Single nucleotide variant (intron variant) | not provided +1 more | GConflicting classifications of pathogenicity |
| | | Single nucleotide variant (intron variant) | beta Thalassemia +2 more | |
| | | Single nucleotide variant (intron variant) | not provided +3 more | |
| | | Single nucleotide variant (intron variant) | not provided +1 more | |
| | | Single nucleotide variant (intron variant) | beta Thalassemia +1 more | |
| | | Single nucleotide variant (intron variant) | not provided +2 more | |
| | | Single nucleotide variant (intron variant) | not provided | |
| | | Single nucleotide variant (splice donor variant) | Dominant beta-thalassemia +11 more | |