Table 1.

Frequency of α- and β-thalassemia defects in the Kadazandusuns in Sabah.

	Deletional α-thalassemia					Nondeletional α-thalassemia		β-thalassemia
	−α3.7	−α4.2	- -SEA	- -FIL	- -THAI	HbCS	HbQS	Filipino β-thalassemia deletion	*22 β-mutations
Kadazandusun	42	0	0	0	0	0	0	16	0
n = 125 (%)	(33.6%)							(12.8%)

*The 22 β-thalassemia mutations are CD41/42 (−CTTT), IVS2-654 (C→T), CD26 (GAG→AAG, HBE), IVS1-5 (G→C), −28 (A→G), CD43 (GAG→TAG), CD27/28 (+C), −29 (A→G), CD71/72 (+A), CD17 (AAG→TAG), CD19 (AAC→AGC), Poly A (AATAAA→AATAGA), −88 (C→T), Initiation codon (ATG→AGG), CAP (+1) (A→C), CD8/9 (+G), CD16 (−C), CD35 (−C), IVS2-1 (G→A), IVS1-1 (G→A), IVS1-1 (G→T) and CD15 (TGG→TAG).