Table 5: Univariate and multivariate factors associated with blood donation.
CI, confidence intervals; 1Adjusted for demographic variables, age, education, knowledge score and barriers.
| Variables | Univariate | Multivariate |
| Crude OR (95% CI) | P-value | Adjusted OR1 (95% CI) | P-value |
| Gender |
| Female (reference) |
| Male | 4.09 (3.05, 5.47) | <0.001 | 5.41 (3.69, 7.93) | <0.001 |
| Nationality |
| Kuwaiti (reference) |
| Non-Kuwaiti | 2.67 (1.83, 3.91) | <0.001 | 1.13 (0.66, 1.93) | 0.66 |
| Age group (year) |
| < 25 (Reference) |
| 25 – 44 | 3.00 (1.81, 4.98) | <0.001 | 2.28 (1.26, 4.14) | 0.006 |
| ≥ 45 | 7.27 (3.88, 13.61) | <0.001 | 3.76 (1.77, 7.97) | <0.001 |
| Education level |
| High school or below (reference) |
| Bachelor or more | 1.97 (1.28, 3.04) | 0.002 | 1.18 (0.63, 2.21) | 0.60 |
| Knowledge score | 1.17 (1.11, 1.24) | <0.001 | 1.23 (1.14, 1.33) | <0.001 |
| Fear of pain |
| No (reference) |
| Yes | 0.73 (0.54, 0.98) | 0.038 | 1.04 (0.67, 1.68) | 0.86 |
| Fear of getting infection |
| No (reference) |
| Yes | 0.97 (0.74, 1.31) | 0.92 | 1.49 (1.1, 2.22) | 0.05 |
| Fear of seeing blood |
| No (reference) |
| Yes | 0.69 (0.50, 0.95) | 0.02 | 0.67 (0.42, 1.06) | 0.08 |
| Fear of anemia |
| No (reference) |
| Yes | 0.56 (0.41, 0.76) | <0.001 | 0.49 (0.32, 0.76) | 0.002 |
| Lack of access to the blood bank |
| No (reference) |
| Yes | 0.70 (0.51, 0.97) | 0.031 | 0.99 (0.63, 1.55) | 0.96 |