Table 3. Sero-prevalence of HBV infection according to socio-demographic characteristics of blood donors at the North Gondar District Blood Bank, northwest Ethiopia.
| Variables | HBV | COR (99%CI) | AOR (99%CI) | |
|---|---|---|---|---|
| Reactive | Non-reactive | |||
| Age group | ||||
| 18–25 | 103 | 2,967 | 1.00 | |
| 26–35 | 75 | 2,116 | 1.02(0.69, 1.52) | |
| 36–45 | 37 | 809 | 1.32(0.8, 2.2) | |
| >45 | 18 | 346 | 1.49(0.76, 2.2) | |
| Sex | ||||
| Male | 185 | 5,126 | 1.00 | |
| Female | 48 | 1,112 | 1.2(0.78, 1.8) | |
| Occupation | ||||
| Student | 32 | 1,810 | 1.00 | 1.00 |
| Farmer | 63 | 1,665 | 2.14(1.24, 3.77) | 2.20(1.25, 3.89) |
| Employed* | 97 | 2,214 | 2.49(1.45, 4.21) | 2.48(1.46, 4.23) |
| Unemployed | 41 | 549 | 4.22(2.3, 7.9) | 4.00(2.15, 7.46) |
| Type of donation | ||||
| Voluntary | 5 | 377 | 1.00 | |
| Replacement | 228 | 5,861 | 2.93(0.91, 9.74) | |
| Year of donation | ||||
| 2010 | 57 | 1,949 | 1.00 | 1.00 |
| 2011 | 55 | 2,116 | 0.89 (0.54, 1.45) | 0.87 (0.53, 1.43) |
| 2012 | 121 | 2,173 | 1.90 (1.23, 2.90) | 1.84 (1.20, 2.80) |
COR: Crude Odds Ratio; AOR: Adjusted Odds Ratio; CI: Confidence Interval; and
*Employed: government employed, private employed and self-employed