A Novel -72 (T→A) β-Promoter Mutation Causing Slightly Elevated HbA₂ in a Vietnamese Heterozygote

Table 3

Hematology, β-genotype, and globin clusters arrangement for proband and his family members.

Samples	Hb (g/dl); 12–15	HbA2 (%); ≤3.5	MCV (fl); 80–100	MCH (pg); 28–32	β-Genotype	HBB cluster	HBA cluster
Proband	10.8	3.96	83	26.3	ββ	Normal	Normal
Father	14.1	4.01	96.5	30.5	ββ	Normal	Triplicated
Mother	12.0	2.94	96.8	29.7	Normal	ND	ND
Sister	12.1	2.84	85.1	26.9	Normal	ND	ND
Grandfather	13.6	3.82	95.4	29.5	ββ	Normal	ND
Grandmother	11.9	2.69	97.5	30	Normal	ND	ND

Reference values.