Table 3.
Bi-variable and multivariable binary logistic regression: Factors associated with preoperative anemia among major elective orthopedics surgical patients at North West Ethiopia, 2021, (N = 170)
| Variable | Category | Anemia | COR(95%CI) | AOR(95%CI) | P value | |
|---|---|---|---|---|---|---|
| Yes | No | |||||
| Sex | Male | 34(30.91%) | 76(69.09%) | 1 | 1 | - |
| Female | 6(10%) | 54(90%) | 2.7(1.14–6.2 ) | 2.5(0.96–6.4) | 0.061 | |
| Monthly income | High | 1(14.3%) | 6(85.7%) | 1 | 1 | - |
| Medium | 5(21.7%) | 18(78.3%) | 2.7(0.59–12.7) | 3.6(0.49–6.9) | 0.203 | |
| Low | 35(25%) | 105(75%) | 3.8(1.3–10.9) | 5(1.36–7.98) | 0.015 | |
| Patient with cancer | YES | 25 (51%) | 24(49%) | 1 | 1 | - |
| NO | 16(13.2%) | 105(86.8%) | 2.1(2.56–6.7) | 3.4(3.7–8.84) | 0.002 | |
| Chemotherapy | YES | 31(30.39%) | 71(69.61%) | 1 | 1 | - |
| NO | 9(13.24%) | 59(86.76%) | 2.5(0.75–8.31) | 5(0.9–28.4) | 0.060 | |
| Patient with malaria infection | Yes | 28(65.12%) | 15(34.88%) | 1 | 1 | - |
| No | 13(10.24%) | 114(89.76%) | 2.8(1.26–6.48) | 3.2(1.13–8.9) | 0.027 | |
| DM | Yes | 5(50%) | 5(50%) | 2.4(0.46–12.5) | 2.9(0.4–21.4) | 0.275 |
| No | 35(21.87%) | 125(78.13%) | 1 | 1 | - | |
| anti-retroviral therapy | Yes | 34(34%) | 66(66%) | 4.4(1.8–10.7) | 5.2(1.8–11.1) | 0.002 |
| No | 6(8.57%) | 64(91.43%) | 1 | 1 | - | |
| Pervious history of surgery | Yes | 20(29.41%) | 48(70.59%) | 1.7(1.8–3.5) | 1(1.43–2.4) | 0.001 |
| No | 20(19.61%) | 82(80.39%) | 1 | 1 | - | |
**: significant (p-value < 0.05) AOR: adjusted odds ratio, COR: crude odds ratio CI: confidence interval, I: Reference.