Table 4. Sero-prevalence of HIVand syphilis infections according to socio-demographic characteristics of blood donors at Debre Berhan Blood Bank, Central North Ethiopia.
| Variables | HIV+ | COR(95% CI) | P-value | Syphilis+ | COR(95% CI) | P-value |
|---|---|---|---|---|---|---|
| n(%) | N(%) | |||||
| Sex | ||||||
| Male | 12(0.2) | 1.0 | - | 54(1.0) | 1.0 | - |
| Female | 8(0.3) | 0.8(0.3–1.9) | 0.64 | 6(0.2) | 4.5(1.9–10.5) | <0.001 |
| Age (Years) | ||||||
| 18–20 | 5(0.2) | 4.6(1.1–19.1) | 0.03 | 13(0.4) | 9.0(4.2–19.0) | <0.001 |
| 21–26 | 8(0.3) | 2.7(0.7–10.3) | 0.14 | 8(0.3) | 14(5.9–33.4) | <0.001 |
| 27–40 | 5(0.3) | 2.9(0.7–12.1) | 0.15 | 24(1.2) | 3.1(1.6–5.9) | 0.001 |
| 41–65 | 3(0.7) | 1.0 | - | 15(3.6) | 1.0 | - |
| Year of Donation | ||||||
| 2014 | 7(0.7) | 1.0 | - | 1(0.1) | 1.0 | - |
| 2015 | 4(0.1) | 5.7(1.7–19.5) | 0.006 | 10(1.3) | 0.3(0.04–2.5) | 0.28 |
| 2016 | 9(0.4) | 1.8(0.7–4.8) | 0.26 | 33(1.4) | 0.1(0.01–0.5) | 0.008 |
| 2017 | 1(0.1) | 11.9(1.5–96.9) | 0.02 | 16(0.9) | 0.1(0.01–0.8) | 0.029 |
HIV: human immunodeficiency virus, COR: crudes odds ratio, CI: confidence interval