Research Article
Assessing ABO/Rh Blood Group Frequency and Association with Asymptomatic Malaria among Blood Donors Attending Arba Minch Blood Bank, South Ethiopia
Table 4
Association of malaria parasitemia with different independent variables among blood donors attending Arba Minch Blood Bank from February to June 2015.
| Variable | Number examined | Rate of malaria infection (%) | Crude OR | value | Adjusted OR | value |
| Sex | | | | | | | Male | 232 | 6 (2.6%) | | | | | Female | 184 | 11 (6.0%) | 2.395 (0.869–6.604) | 0.091 | 2.599 (0.889–7.594) | 0.081 | Age | | | | | | | 18–27 | 355 | 15 (4.2%) | | | | | 28–37 | 48 | 1 (2.1%) | 0.482 (0.062–3.735) | 0.640 | | | >37 | 13 | 1 (8.3%) | 1.889 (0.230–15.495) | | | | Educational status | | | | | | | Illiterate | 111 | 4 (3.6%) | 0.73 (0.224–2.382) | 0.853 | | | Primary | 21 | 1 (4.8%) | 0.985 (0.12–8.096) | | | | Secondary | 75 | 2 (2.7%) | 0.532 (0.114–2.487) | | | | Tertiary | 209 | 10 (4.8%) | | | | | Occupation | | | | | | | House wife | 14 | 1 (7.1%) | 5.346 (0.454–63.005) | 0.450 | | | Peasant/agriculture | 117 | 6 (5.1%) | 3.757 (0.744–18.976) | | | | Employed | 141 | 2 (1.4%) | | | | | Business/shop | 79 | 5 (6.3%) | 4.696 (0.889–24.794) | | | | Student | 65 | 3 (4.6%) | 3.363 (0.548–20.632) | | | | Previous malaria infection | | | | | | | Yes | 155 | 6 (3.9%) | 1.081 (0.392–2.984) | 0.880 | | | No | 261 | 11 (4.2%) | | | | | Use of bed net | | | | | | | Yes | 152 | 1 (0.7%) | | | | | No | 264 | 16 (5.8%) | 4.518 (1.019–20.032) | 0.047 | 3.990 (0.866–18.384) | 0.076 | ABO blood type | | | | | | | A | 136 | 1 (0.7%) | 0.126 (0.008–2.107) | 0.033 | 0.163 (0.009–2.896) | 0.022 | B | 87 | 1 (1.1%) | 0.198 (0.012–3.317) | | 0.292 (0.016–5.235) | | AB | 18 | 1 (5.6%) | | | | | O | 175 | 14 (8.0%) | 1.478 (0.183–11.945) | | 2.373 (0.266–21.195) | | Rh blood type | | | | | | | Rh+ | 386 | 14 (3.6%) | | | | | Rh− | 30 | 3 (10%) | 2.952 (0.799–10.906) | 0.104 | 2.683 (0.624–11.543) | 0.185 | Previous history of blood donation | | | | | | | Yes | 219 | 4 (1.8%) | | | | | No | 197 | 13 (6.6%) | 3.798 (1.217–11.848) | 0.022 | 3.205 (0.973–10.560) | 0.056 |
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