Donors (n:488)  Nondonors (n:525) Total (n:1013)
Age (years)
18-25   88 (18.0) 92 (17.5)    180 (17.8)
26-35 204 (41.8)  230 (43.8)      434 (42.8)
36-45 135 (27.7)   141 (26.9) 276 (27.2)
46-55 54 (11.1)      53 (10.1) 107 (10.6)
>56 7 (1.4)   9 (1.7)   16 (1.6) 
Gender
Male 461(94.5) 413 (78.7) 874(86.3)
Female 27(5.5) 112 (47.6) 139(13.7)
Marital status
Married 356(73) 321(61.1) 677(66.8)
Unmarried 132(27) 204(38.9) 336(33.2)
Education      
Elementary 187(38.3) 106(20.1) 293(29)
Intermediate 85 (17.5) 47 (9) 132 (13)
Highschool 148 (30.5) 164 (31.3) 312 (30.8)
University 68(13.9) 208(39.7) 276(27.2)
Occupation
None 164(33.7) 37(7.0) 201(19.8)
Employed 283 (58.2) 345 (65.8) 628 (62)
Self Employed 12 (2.4) 109 (20.7) 121 (12)
Student 29(6) 34(6.5) 63(6.2)
Table 1: Demographic characteristics of participants (n,%).