Table 3.
Bivariable and multivariable logistic regression analysis of associated factors of preoperative anemia among adult elective surgical patients at Saint Paul’s Hospital Millennium Medical College, Addis Ababa, Ethiopia, 2024.
| Variables | Preoperative anemia | COR (95%CI) | AOR (95%CI) | |
|---|---|---|---|---|
| Yes | No | |||
| Sex | ||||
| Male | 27 | 99 | 1 | 1 |
| Female | 40 | 81 | 1.81 (1.02,3.20) | 3.44 (1.53, 7.73)** |
| Residency | ||||
| Urban | 35 | 133 | 1 | 1 |
| Rural | 32 | 47 | 2.59 (1.44, 4.64) | 1.05 (0.40, 2.75) |
| Age | ||||
| 18–29 | 26 | 48 | 1 | 1 |
| 30–49 | 21 | 66 | 0.59 (0.29, 1.17) | 1.01 (0.42, 2.43) |
| 50–69 | 12 | 49 | 0.45 (0.21, 0.99) | 0.89 (0.29, 2.74) |
| 70 and above | 8 | 17 | 0.87 (0.33, 2.28) | 1.54 (0.36, 6.60) |
| Educational status | ||||
| Have no formal education | 22 | 41 | 2.80 (1.16, 6.77) | 2.11 (0.52, 8.51) |
| Primary education | 9 | 38 | 1.24 (0.45, 3.42) | 1.01 (0.28, 3.67) |
| Secondary education | 27 | 54 | 2.61 (1.12, 6.12) | 1.88 (0.62, 5.75) |
| College and above | 9 | 47 | 1 | 1 |
| Occupation | ||||
| Government employee | 10 | 44 | 1 | 1 |
| Self-employee | 25 | 54 | 2.04 (0.89, 4.69) | 1.25 (0.42, 3.72) |
| Others | 24 | 44 | 2.40 (1.03, 5.60) | 0.98 (0.29, 3.30) |
| No job | 8 | 38 | 0.93 (0.33, 2.58) | 0.39 (0.10, 1.54) |
| Media exposure | ||||
| Exposed | 49 | 152 | 1 | 1 |
| Un exposed | 18 | 28 | 1.99 (1.02, 3.91) | 2.59 (0.86, 7.78) |
| BMI | ||||
| <18.5 | 10 | 21 | 1.03 (0.45, 2.33) | 1.02 (0.37, 2.81) |
| 18.5–24.9 | 52 | 112 | 1 | 1 |
| 25 and above | 5 | 47 | 0.23 (0.09, 0.61) | 0.26 (0.10, 0.88)* |
| Recent prior surgery | ||||
| Yes | 28 | 18 | 6.46 (3.25, 12.85) | 2.63 (0.94, 7.30) |
| No | 39 | 162 | 1 | 1 |
| Malaria attack | ||||
| Yes | 11 | 11 | 3.02 (1.24, 7.34) | 2.98 (0.96, 9.23) |
| No | 56 | 169 | 1 | 1 |
| Indication for surgery | ||||
| Non infectious | 30 | 143 | 1 | 1 |
| Infectious | 20 | 14 | 6.81 (3.10, 14,98) | 4.59 (1.62, 12.96)** |
| Injury/trauma | 17 | 23 | 3.52 (1.68, 7.39) | 3.58 (1.35, 9.49)* |
| Admitted for the last 1 month | ||||
| Yes | 28 | 39 | 5.16 (2.67, 9.97) | 1.75 (0.64, 4.77) |
| No | 22 | 158 | 1 | 1 |
* = P-value < 0.05, ** = P-value < 0.01 BMI; Body Mass Index.