Table 2.
Factors associated with human brucellosis, Arba Minch Blood Bank Center, Ethiopia, January–March 2014
| Risk factors | Category | No (%) | Nonreactive serum | Reactive serum | OR (95% CI) | P value |
|---|---|---|---|---|---|---|
| Occupation | Farmer | 69 (27.2) | 55 | 14 | 3.68 (1.58, 8.58) | 0.003 |
| Other | 170 (66.9) | 159 | 11 | 1 | ||
| Possession of ruminants at home (N = 242) | Yes | 132 (54.5) | 113 | 19 | 2.91 (1.12, 7.58) | 0.028 |
| No | 110 (45.5) | 104 | 6 | 1 | ||
| Consumes unpasteurized milk (N = 243) | yes | 159 (65.4) | 143 | 16 | 0.93 (0.39, 2.21) | 0.874 |
| No | 84 (34.6) | 75 | 9 | 1 | ||
| Consumes row meat (N = 243) | Yes | 224 (92.2) | 199 | 25 | 3.32 (0.54, + infinity) | 0.233 |
| No | 19 (7.8) | 19 | 0 | 1 | ||
| Consumes “Dullet”* (N = 243) | Yes | 223 (95.9) | 208 | 25 | 1.64 (0.25, + infinity) | 0.661 |
| No | 10 (4.1) | 10 | 0 | 1 | ||
| Current contact with ruminants (N = 242) | Yes | 122 (50.4) | 105 | 17 | 2.61 (1.04, 6.55) | 0.041 |
| No | 120 (49.6) | 113 | 7 | 1 | ||
| Ever attended parturition (N = 243) | Yes | 75 (30.9) | 64 | 11 | 1.89 (0.82, 4.39) | 0.138 |
| No | 168 (69.1) | 154 | 14 | 1 | ||
| Ever encountered dystocia (N = 243) | Yes | 39 (16) | 32 | 7 | 2.26 (0.87, 5.85) | 0.093 |
| No | 204 (84) | 186 | 18 | 1 | ||
| Ever assisted abortion (N = 243) | Yes | 28 (11.5) | 22 | 6 | 2.81 (1.02, 7.79) | 0.046 |
| No | 215 (88.5) | 196 | 19 | 1 | ||
| Ever attended slaughtering (N = 241) | Yes | 79 (32.8) | 67 | 12 | 2.05 (0.89, 4.74) | 0.092 |
| No | 162 (67.2) | 149 | 13 | 1 |
CI = confidence interval; OR = odds ratio.
*
“Dullet” is food prepared from the intestines and organs (such as liver) of cattle.