ตารางที่ 5
แสดง ALPHA THALASSEMIA

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Syndrome	Genotype	Clinical Feature	Hb Pattern
			New born	After 1st year
Hydrops fetalis	-- / --	Fetal or neonatal death with severe anemia	Hb Bart's>80% Hb H,Hb Portland	-
Hb H disease	-- / -a (-- / aacs)	Chronic hemolytic     anemia	Hb Bart's 20-40%  (Hb CS present)	Hb H 5-30% Hb Bart's+trace (Hb CS 2-3%)
Thalassemia    minor	-- / aa -a / -a	Little or no anemia;     thalassemic Rbc	Hb Bart's 2-10%	None
Silent carrier	-a / aa aa / aacs	No clinical or hemolytic     abnormality	Hb Bart's 1-2% (Hb CS present)	None (Hb CS 1%)
Normal	aa / aa	No clinical or hemolytic     abnormality	Hb Bart's 0-trace%	None