Volume 18, Number 11—November 2012
Research
Litchi–associated Acute Encephalitis in Children, Northern Vietnam, 2004–2009
Table 3
Variable/category | IRR* (95% CI) | p value† |
---|---|---|
Litchi surface, % commune surface | ||
<1.49 |
1 | <0.001 |
1.49–5.84 |
1.52 (0.90–2.57) | |
5.84–12.92 |
2.94 (1.88–4.60) | |
>12.92 |
2.76 (1.76–4.32) | |
Poultry density, no./km2 | ||
<1,449.79 |
1 | <0.001 |
1,449.79–3,715.18 |
0.62 (0.43–0.91) | |
3,715.18–7,065.25 |
0.61 (0.42–0.89) | |
>7,065.25 |
0.25 (0.15–0.43) | |
Mean humidity, %, January–April | ||
<82.07 |
1 | <0.001 |
82.07–83.55 |
0.84 (0.61–1.16) | |
>83.55 |
0.35 (0.23–0.54) |
*IRR, incidence rate ratio.
†Indicates global p value.
Page created: October 15, 2012
Page updated: October 15, 2012
Page reviewed: October 15, 2012
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