Table 2 The results of the sub-group analysis
Variables | No. studies | Prevalence% (95% CI) | I2 (%) | P value | No. participants | |
|---|---|---|---|---|---|---|
Species of livestock | Sheep | 24 | 4.3 (95% CI: 3.2–5.8) | 99.9 | 0.000 | 5,694,328 |
Goat | 20 | 3.7 (95% CI: 2.6–5.2) | 99.9 | 0.000 | 5,386,380 | |
Cow | 22 | 4.8 (95% CI: 3.5–6.5) | 99.9 | 0.000 | 5,673,408 | |
Buffalo | 6 | 5.2 (95% CI: 3.5–7.7) | 99.1 | 0.000 | 762,182 | |
Camel | 5 | 18.3 (95% CI: 5.5–46.4) | 99.3 | 0.000 | 5549 | |
Regions of iran | North | 7 | 25.3 (95% CI: 20.4–30.9) | 99.9 | 0.000 | 6,321,706 |
South | 9 | 7 (95% CI: 5.2–9.5) | 99.9 | 0.000 | 4,541,795 | |
West | 8 | 13.3 (95% CI: 6.6–24.9) | 99.9 | 0.000 | 755,049 | |
East | 3 | 23.6 (95% CI: 13.1–38.7) | 99.4 | 0.001 | 5,135,105 | |
Center | 4 | 12.9 (95% CI: 11.3–14.7) | 99.4 | 0.000 | 768,239 | |
Sample size | < 5000 | 11 | 17.9 (95% CI: 9–32.4) | 99.6 | 0.000 | 20,817 |
5000–10,000 | 6 | 19.3 (95% CI: 9.3–36) | 99.9 | 0.001 | 38,278 | |
10,000–20,000 | 4 | 10.6 (95% CI: 4.9–21.6) | 99.8 | 0.000 | 54,099 | |
20,000< | 10 | 10.8 (95% CI: 6.7–16.9) | 99.9 | 0.000 | 17,397,113 | |