Beta-Thalassemia Intermedia: A Single Thalassemia Center Experience from Northeastern Iraq

Table 4

β-Globin gene mutations in 159 thalassemia intermedia patients in the current study.

β-Thalassemia mutations	Frequency of allele	Percent
Very mild β^++
(1) CAP +1	2	(0.6)
(2) -101	1	(0.3)
Mild β^+
(1) IVS I.6	74	(23.3)
(2) IVS I.128	8	(2.5)
(3) IVS II.745	3	(0.9)
Severe β^+
(1) IVS I.110	16	(5)
(2) IVS I.5	1	(0.3)
β^0
(1) IVS II.1	150	(47.2)
(2) IVS I.1	15	(4.7)
(3) Cod 8	15	(4.7)
(4) Cod 8/9	11	(3.5)
(5) Cod 5	6	(1.9)
(6) Cod 39	3	(0.9)
(7) Cod 36/37	2	(0.6)
(8) Cod 44	2	(0.6)
(9) Cod 82-83	1	(0.3)
(10) IVS II.850	1	(0.3)
(11) Cod 15	1	(0.3)
Wild	5	(1.6)
Dominant like β-thalassemia Cod 127	1	(0.3)