| | Intestinal protozoan infection | | Category | COR (95% CI) | AOR (95% CI) | value |
| | Gender | | Male | 1 | 1 | 0.249 | | Female | 1.09 (0.74, 1.59) | 1.27 (0.85, 1.93) | |
| | Age | | 6–11 | 1 | 1 | 0.986 | | 12–16 | 0.95 (0.64, 1.40) | 1.00 (0.65, 1.53) | |
| | Ethnic group | | Tigrigna | 1 | 1 | 0.346 | | Tigre | 1.39 (0.89, 2.19) | 1.17 (0.73, 1.89) | 0.501 | | Saho | 1.77 (1.07, 2.93) | 1.55 (0.89, 2.70) | 0.116 | | Other | 0.530 (0.058, 4.87) | 0.40 (0.04, 3.95) | 0.433 |
| | Knowing purpose of washing hands | | Yes | 1 | 1 | 0.035 | | No | 2.48 (1.21, 5.05) | 2.23 (1.056, 4.71) | |
| | Hand hygiene | | Clean | 1 | 1 | 0.004 | | Unclean | 1.85 (1.25, 2.75) | 1.89 (1.23, 2.90) | |
| | Water source | | River/spring | 3.11 (1.29, 7.52) | 2.41 (1.04, 5.58) | 0.038 | | Pipe | 2.67 (1.19, 5.97) | 2.30 (0.91, 5.85) | 0.078 | | Water truck | 1 | 1 | |
| | Stool consistency | | Formed | 1 | 1 | 0.010 | | Soft | 1.80 (1.19, 2.72) | 1.92 (1.25, 2.97) | 0.003 | | Loose | 2.50 (1.28, 4.86) | 2.43 (1.22, 4.85) | 0.012 | | Watery | 1.19 (0.11, 13.5) | 1.13 (0.095, 3.44) | 0.922 |
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