Table 1.

Characteristics of the study population by year of donation.

Variables	2004 N (%)	2005 N (%)	2006 N (%)	2007 N (%)	Total N (%)
Sex
Male	1326(99)	1539(98.6)	1095(98.5)	1317(98.8)	5277(98.7)
Female	13 (1.0)	22 (1.4)	17 (1.5)	16(1.2)	68 (1.3)
Age
17–26 Yrs	671(50.3)	794(51.1)	592(53.7)	696(52.4)	2753 (51.5)
27–65 Yrs	662(49.7)	760(48.9)	511(46.3)	632(47.6)	2565 (48.2)
Missing					27
Literacy
Illiterate	823(61.9)	878(56.4)	663(60.2)	886(66.8)	3250 (60.8)
Literate	507(38.1)	678(43.6)	439(39.8)	441(33.2)	2065 (38.6)
Missing					30
Mother tongue
Sindhi	995(74.4)	1250(80.1)	780 (70.1)	1048(78.6)	4073(76.2)
Others	343(25.6)	311(19.9)	333(29.9)	284(21.3)	1270(23.8)
Missing					2
Type of donor
First time	668(50.0)	661(42.3)	535(48.1)	718(53.9)	2582(48.3)
Second or more	668 (50.0)	900(57.7)	577(51.9)	614(46.1)	2759 (51.6)
Missing					4
Total	1339(25.1)	1561(29.2)	1112(20.8)	1333(24.9)	5345