Table 1. Comparison of Mean HbF level (%) in Relation to Gender and XmnI polymorphism.

Parameter	N(%)	Mean (±SD)	Range	p-value
Gender	48
Male	28(58.33)	10.8(9.8)	2.7-45.8	0.184
Female	20(41.67)	8.8(8.9)	1.1-37.5
XmnI polymorphism
Heterozygote (+/-)	32(66.7)	11.86(10.88)	1.1-45.8	0.058
Homozygote (-/-)	16(33.3)	6.27(3.45)	2.7-15.5