Table 2 Factors affecting temporal trends in HFRS incidence for Shuangyang County, and for the combined other nine counties, Changchun
County | Variable (unit) | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|---|
| Â | PC (95% CI) | P-value | PC (95% CI) | P-value | |
Shuangyang | Livestock husbandry | Â | Â | Â | Â |
|  |   Large animals (10 h/km2) | 45.0 (42.2, 47.8) | < 0.001 | - | - |
|  |   Sheep density (10 h/km2) | 1154.0 (978.0, 1358.8) | < 0.001 | - | - |
|  |   Deer density (10 h/km2) | 70.7 (65.8, 75.7) | < 0.001 | 70.7 (65.8, 75.7) | < 0.001 |
| Â | Climate factors | Â | Â | Â | Â |
|  |   Temperature (1°C) | 61.9 (49.9, 74.8) | < 0.001 | - | - |
|  |   Precipitation (1 mm) | -35.2 (-37.8, -32.4) | < 0.001 |  |  |
|  |   Relative humidity (%) | -3.2 (-3.8, -2.5) | < 0.001 | - | - |
Other nine counties | Livestock husbandry | Â | Â | Â | Â |
|  |   Large animals (10 h/km2) | 26.8 (24.9, 28.8) | < 0.001 | - | - |
|  |   Sheep density (10 h/km2) | 68.6 (63.0, 74.5) | < 0.001 | - | - |
|  |   Deer density (1 h/km2) | 76.4 (69.0, 84.1) | < 0.001 | 90.4 (81.6, 99.6) | < 0.001 |
| Â | Climate factors | Â | Â | Â | Â |
|  |   Temperature (1°C) | 4.8 (0.02, 9.7) | 0. 049 | - | - |
|  |   Precipitation (1 mm) | -1.1 (-1.6, -0.7) | < 0.001 | - | - |
|  |   Relative humidity (%) | -6.1 (-7.6, -4.5) | < 0.001 | 7.1 (5.1, 9.0) | < 0.001 |