Table 3.3 Distribution of hemoglobin gene mutations in α Thalassaemia children Gene mutation Number of patients Ratio (%) 3.7 1 3, 7 3.7 - SEA 3 11, 2 C2 deIT 1 3, 7 HbCs 2 7, 4 HbCs - SEA 9 33, 3 SEA 9 33, 3 SEA - C2 delT 2 7, 4 Total 27 100, 0 Comments: Among the studied pediatric patients, α-Thalassaemia patients carried mutations in the hemoglobin genes of HbCs - SEA and SEA, accounting for 66.6%.