Study of Frequency and Characteristics of Red Blood Cell Alloimmunization in Thalassemic Patients: Multicenter Study from Palestine

Table 4

Contribution of potential of risk factors to alloimmunization.

Variable	Alloimmunized median (Q1–Q3) or (%)	Nonalloimmunized median (Q1–Q3) or (%)	-value
Age (years)	18 (12–24)	18 (12–24)	0.832
Transfusion starting age (month)	12 (6–12)	12 (5.3–15.5)	0.875
Number of transfusions	107 (71–329)	102 (68–200)	0.42
Gender
Male	10 (37.0)	102 (54.3)	0.103
Female	17 (63.0)	86 (45.7)
History of splenectomy
Yes	11 (40.7)	91 (48.4)	0.539
No	16 (59.3)	97 (51.6)