Volume 9, Number 7—July 2003
Research
Hantavirus Prevalence in the IX Region of Chile
Table 1
Relationship between independent variables and seropositivity to hantaviruses, IX Region, Chile
Variables | Seropositive (total) | p value | RR (95% CI)a |
---|---|---|---|
Sex |
|||
Male |
4 (395) |
0.43 |
|
Female |
2 (435) |
||
Age |
|||
15–44 y of age |
2 (550) |
0.18 |
|
>44 y of age |
4 (280) |
||
Race |
|||
Mapuche |
2 (151) |
0.30 |
|
Other |
4 (679) |
||
Area |
|||
Andean |
6 (271) |
0.0001a |
NAb |
Central |
0 (273) |
||
Coastal |
0 (286) |
||
Risk activity or labor |
|||
Agrarianc |
|||
No activity |
1 (271) |
||
Two or more |
4 (341) |
0.38 |
|
Forestingd |
|||
No activity |
1 (279) |
||
With activity |
5 (135) |
0.018 |
9.72 (1.15 to 82.44) |
Exposure to rodents |
|||
Peridomestic |
5 (731) |
0.10 |
|
Laboral | 5 (453) | 1.00 |
ap <0.05; p values were determined by using 2-tailed Fisher exact test; RR, relative risk; CI, confidence interval.
bNot applicable.
cClearing, shrubbery cutting, working in pastures or cellars.
dForesting, working at a sawmill.