Table 1 Association of different variables in the seroprevalence of brucellosis in ovine and caprine in China
Variables | No. studies | No. samples | No. Positive | Rate (%) (95% CI) | Heterogeneity | |||
|---|---|---|---|---|---|---|---|---|
χ2 | P-value | I2 (%) | ||||||
Region | Northeast China* | 2 | 2651 | 211 | 5.60 (0-12.10) | 46.10 | 0.000 | 97.8% |
Northern China | 3 | 846759 | 3663 | 3.20 (0-6.60) | 84.81 | 0.000 | 97.6% | |
Northwest China | 42 | 644113 | 13592 | 1.40 (1.00-1.80) | 8545.14 | 0.000 | 99.6% | |
Eastern China | 4 | 1066 | 130 | 7.00 (0-17.40) | 106.33 | 0.000 | 98.1% | |
Southern China | 3 | 6296 | 129 | 2.00 (0.50-3.60) | 17.10 | 0.000 | 94.2% | |
Central China | 2 | 1796 | 30 | 1.90 (0-3.80) | 6.39 | 0.012 | 84.3% | |
Southwest China | 10 | 132061 | 3814 | 5.30 (3.60-7.10) | 1286.40 | 0.000 | 99.5% | |
Sampling year | 2010-2018 | 47 | 1474801 | 19540 | 3.20 (2.70-3.60) | 11402.65 | 0.000 | 99.7% |
2000-2009 | 24 | 159941 | 2029 | 1.00 (0.70-1.30) | 1367.24 | 0.000 | 98.4% | |
Method | SAT | 48 | 1607691 | 21115 | 2.20 (1.90-2.50) | 12495.11 | 0.000 | 99.7% |
RBPT | 18 | 27051 | 454 | 2.80 (1.90-3.80) | 219.96 | 0.000 | 95.5% | |
Species | Goat | 28 | 188687 | 4246 | 3.50 (2.80-4.10) | 2835.30 | 0.000 | 99.3% |
Sheep | 45 | 1446055 | 17323 | 1.80 (1.50-2.20) | 9705.32 | 0.000 | 99.6% | |
Total | 66 | 1634742 | 21569 | 2.30 (2.00-2.60) | 12732.79 | 0.000 | 99.6% | |