Red Blood Cell Alloimmunization and Autoimmunization in Blood Transfusion-Dependent Sickle Cell Disease and β-Thalassemia Patients in Al-Ahsa Region, Saudi Arabia

Table 2

Rates of β-thalassemia and sickle cell disease alloimmunization in Al-Ahsa Region, Saudi Arabia.

	Current study	Jazan [17]	Jeddah [18, 19]	[20] Eastern
β-thalassemia alloimmunization (n)	34 out of 284	7 out of 53	27 out of 134	N/A
Percentage (%)	11.8%	13.21%	20.15%	N/A
value		0.0010	0.0001
Sickle cell alloimmunization (n)	13 out of 78	50 out of 385	30 out of 234	48 out of 350
Percentage (%)	16.7%	12.98%	12.8%	13.7%
value		0.0002	0.0006	0.0010