Table 1.

Characteristics of study population

Donor characteristics	n	Percentage
Gender
Male	194	94.6
Female	11	5.4
Type
Voluntary donors	166	80.9
Replacement donors	39	19.1
Blood group
O negative	62	30.2
A negative	51	24.9
B negative	74	36.1
AB negative	16	7.8
DEL positive (95% CI)	0	0 (0–0.018)
Weak D positive (95% CI)	2	0.01 (0.002–0.034)

CI=Confidence interval