Table 1. Japanese encephalitis expected and observed cases and incidence rates (IR) per 100,000 person years in Nepal.
| Campaign target population |
Campaign year |
Expected | Observed | Percent difference in IR |
95% confidence interval |
||||
|---|---|---|---|---|---|---|---|---|---|
| Cases | IR | Cases | IR | ||||||
| Vaccinated districts (n = 31) | Variable | 2006–11 | 3,864 | 3.3 | 853 | 0.7 | -78% | (-79%, -76%) | |
| Ecologic and risk area | |||||||||
| Terai high-risk (n = 4) | ≥1 yr | 2006 | 2,202 | 11.7 | 247 | 1.3 | -89% | (-90%, -87%) | |
| Terai moderate risk (n = 20) | Variable | 2006–11 | 1,319 | 1.6 | 500 | 0.6 | -62% | (-65%, -59%) | |
| Hill moderate risk (n = 7) | Variable | 2008–11 | 343 | 1.9 | 106 | 0.6 | -69% | (-75%, -63%) | |