Table 4 Characteristics of blood donors associated with HIV and Syphilis sero positivity from 2008 to 2015 in Harari regional state blood bank in Eastern Ethiopia

 Male

51/9403(0.5)

1

108/9403(1.1)

1

1

 Female

12/1979(0.6)

0.9(0.5,1.7)

0.6(0.3,1.1)

15/1979(0.8)

1.5(0.9,2.6)

0.9(0.5,1.5)

 17–25

21/6555(0.3)

0.5(0.1,1.4)

2.2(0.7,7.3)

34/6555(0.5)

1

1

 26–35

28/2934(1.0)

1.3(0.4,3.7)

0.8(0.3,2.3)

36/2934(1.2)

2.4(1.5,3.8)

2.1(1.2,3.6)**

 36–45

10/1402 (0.7)

0.9(0.3,2.9)

1.1(0.4,3.6)

38/1402(2.7)

5.3(3.4,8.5)

4.1(2.4,7.1)**

  ≥ 46

4/490 (0.8)

1

1

15/490(3.1)

6.1(3.3,11.2)

4.6(2.3,9.1)**

 Farmer

10/1081(0.9)

1.1(0.1,8.6)

0.9(0.1,7.4)

22/1081(2.0)

1.4(0.3,5.8)

1.4(0.3,6.2)

 Military

12/1956(0.6)

0.9(0.1,6.9)

1.1(0.1,8.9)

40/1956(2.0)

1.4(0.3,5.7)

0.6(0.1,2.5)

 Government employed

11/1896(0.6)

0.6(0.8,4.8)

1.6(0.2,12.9)

31/1896(1.6)

1.1(0.3,4.6)

0.5(0.1,2.1)

 Driver

1/222(0.5)

0.5(0.03,8.5)

1.9(0.1,31.4)

1/222(0.5)

0.3(0.03,3.3)

0.3(0.02,2.8)

 Student

12/4079(0.3)

0.6(0.7,4.5)

1.8(0.2,14.5)

14/4079(0.3)

0.2(0.05,1.0)

0.2(0.04,0.8)**

 Private employed

12/1259(1.0)

1.1(0.1,8.3)

0.9(0.1,7.4)

5/1259(0.4)

0.7(0.2,3.3)

0.2(0.03,0.9)**

 Others*

4/757(0.5)

0.5(0.1,4.7)

1.9(0.2,17.9)

8/757(1.1)

3.9(0.7,20.1)

0.4(0.08,2.0)

 Unemployed

1/132(0.8)

1

2/132(1.5)

1

1

 Mobile

29/6376(0.5)

0.7(0.3,1.7)

82/6376(1.3)

0.9(0.5,1.6)

1.3(0.7,2.5)

 Replacement

28/4089(0.7)

1.1(0.4,2.5)

28/4089(0.7)

0.5(0.3,0.9)

0.3(1.6,6.7)**

 Voluntary

6/917(0.7)

1

13/917(1.4)

1

1