Table 4. Apparent sero-prevalence with 95% CI and true sero-prevalence with 95% credible interval for Japanese encephalitis in pigs in Vietnam.
| Province (no.) | Sero-positive samples | Apparent sero-prevalence (%) with 95% CI |
True sero-prevalence (%)a with 95% credible interval |
|---|---|---|---|
| Bac Giang (200) | 158 | 79.0 (72.69–84.43) | 80.47 (73.73–86.41) |
| Bac Ninh (200) | 141 | 70.5 (63.66–76.72) | 71.21 (63.97–77.96) |
| Binh Duong (200) | 122 | 61.0 (53.87–67.80) | 60.92 (53.20–68.25) |
| Dong Nai (200) | 155 | 77.5 (71.08–83.09) | 78.83 (71.96–84.88) |
| Dong Thap (200) | 168 | 84.0 (78.17–88.79) | 85.93 (79.73–91.36) |
| Hanoi (200) | 125 | 62.5 (55.39–69.23) | 62.55 (55.14–69.70) |
| Quang Ngai (200) | 128 | 64.0 (56.93–70.65) | 64.22 (56.66–71.37) |
| Quang Ninh (200) | 161 | 80.5 (74.32–85.75) | 82.12 (75.58–87.89) |
| Soc Trang (200) | 145 | 72.5 (65.76–78.56) | 73.46 (66.30–79.94) |
| Thai Binh (200) | 166 | 83.0 (77.06–87.93) | 84.79 (78.46–90.39) |
| Total (2,000) | 1,469 | 73.45 (71.46–75.37) | 74.46 (71.84–77.06) |
a Median value was recorded.