Table 6.
Risk factors for Brucella spp. antibodies in sheep and goats in Egypt.
| Analyzed Factor | No. of Tested | No. of Negative (%) | No. of Positive (%) | OR (95% CI) * | p-Value # |
|---|---|---|---|---|---|
| Animal species | |||||
| Sheep | 239 | 214 (89.5) | 25 (10.5) | Ref. | Ref. |
| Goat | 121 | 115 (95) | 6 (5) | 0.5 (0.2–1.1) | 0.0787 |
| Geographical location | |||||
| Dakahlia (Northern Egypt) | 111 | 90 (81.1) | 21 (18.9) | 4.5 (1.9–10.6) | 0.0002 |
| Beni Suef (Middle Egypt) | 41 | 39 (95.1) | 2 (4.9) | 1 (0.2–4.8) | 0.9873 |
| Qena (Southern Egypt) | 162 | 154 (95.1) | 8 (4.9) | Ref. | Ref. |
| Red Sea (Eastern Egypt) | 46 | 46 | 0 | 0.2 (0–3.5) | 0.1243 |
| Abortion history | |||||
| Yes | 222 | 194 (87.4) | 28 (12.6) | 6.5 (1.9–21.8) | 0.0005 |
| No | 138 | 135 (97.8) | 3 (2.2) | Ref. | Ref. |
* Odds ratio at 95% confidence interval as calculated by http://vassarstats.net/ (accessed on 9 August 2022); # p-value was evaluated by Chi-square test (Pearson test) using online statistics software http://vassarstats.net/ (accessed on 9 August 2022) and GraphPad Prism version 5; Ref.; value used as a reference.