Table 2.
Pooled prevalence estimates of bovine trypanosomosis, stratified by sub-groups
| Characteristics | Number of studies | Pooled bovine trypanosomosis prevalence | Heterogeneity | ||||
|---|---|---|---|---|---|---|---|
| Sample size | Cases | Prevalence (%) | 95 % CI | I 2 % | P-value (Cochran’s Q) | ||
| Overall prevalence | 24 | 27,719 | 2274 | 8.12 | 6.88–9.35 | 93.1 | 0.000 |
| Region | |||||||
| Afar | 1 | 82 | 4 | 4.88 | 0.19–9.57 | 0.00 | 1.00 |
| Amhara | 6 | 15,937 | 1263 | 8.05 | 6.79–9.31 | 85.09 | 0.000 |
| Benishangul Gumuz | 4 | 2284 | 286 | 13.30 | 7.73–18.88 | 93.56 | 0.000 |
| Oromia | 8 | 2943 | 189 | 6.18 | 3.63–8.72 | 91.02 | 0.000 |
| SNNPR | 6 | 4045 | 366 | 7.87 | 4.56–11.19 | 92.93 | 0.000 |
| Tigray | 1 | 411 | 32 | 7.79 | 5.19–10.39 | 0.00 | 1.00 |
| Survey year | |||||||
| 1997–2004 | 5 | 10,984 | 897 | 10.27 | 7.34–13.20 | 95.17 | 0.000 |
| 2005–2009 | 6 | 8059 | 1045 | 9.17 | 7.41–10.93 | 81.85 | 0.000 |
| 2010–2015 | 13 | 8676 | 332 | 6.81 | 5.00–8.62 | 92.18 | 0.000 |
| Sample size | |||||||
| < 384 | 3 | 959 | 84 | 8.25 | 3.99–12.51 | 84.01 | 0.002 |
| 384–1000 | 8 | 5982 | 482 | 8.72 | 7.16–10.29 | 93.96 | 0.000 |
| ≥ 1000 | 13 | 20,778 | 1708 | 7.74 | 5.49–9.98 | 92.78 | 0.000 |