Samples with Hb Bart’s | 371 | 6.62 |
α Thalassaemia* | 340 | – |
Normal | 29 | – |
Undetermined | 2 | – |
Silent carriers without Hb Bart’s | 129 | 2.30 |
(−α3.7) Deletion | 102 | – |
(−α4.2) Deletion | 27 | – |
α Thalassaemia chromosomes | 478 | 8.53 |
(−−SEA) Deletion | 232 | 4.14 |
(−α3.7) Deletion | 174 | 3.10 |
(−α4.2) Deletion | 53 | 0.95 |
(−αCS) Mutation | 10 | 0.18 |
(−−THAI) Deletion | 2 | 0.04 |
(−αQS) Mutation | 2 | 0.04 |
(−−11.1) Deletion† | 1 | 0.02 |
α1CD118 (+TCA)† | 1 | 0.02 |
ζ-α Gene deletion | 1 | 0.02 |
Undetermined | 2 | 0.04 |
β Thalassaemia chromosomes | 198 | 2.54 |
Deletion of CTTT at codons 41–42 | 72 | 0.92 |
C→T at position 654 in IVS2 | 49 | 0.63 |
A→G at nucleotide −28 | 33 | 0.42 |
G→A at codon 26 (Hb E) | 10 | 0.13 |
A→T at codon 17 | 8 | 0.10 |
Insertion of A at codons 71–72 | 7 | 0.09 |
G→T at codon 43 | 7 | 0.09 |
A→G at nucleotide −29 | 4 | 0.05 |
Insertion of A at codons 27–28 | 4 | 0.05 |
β Gene deletion† | 1 | 0.01 |
Undetermined | 3 | 0.04 |