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Volume 10, Number 8—August 2004

Dispatch

Hantavirus Infection in Anajatuba, Maranhão, Brazil

Wellington S. Mendes*Comments to Author , Antônio A.M. da Silva*, Luís F.C. Aragão†, Nelson J.L. Aragão†, Maria de L. Raposo‡, Mauro R. Elkhoury§, Akemi Suzuky¶, Ivani B. Ferreira¶, Luíza Teresinha de Sousa¶, and Cláudio S. Pannuti#
Author affiliations: *Federal University of Maranhão, São Luís, Brazil; †Municipal Secretary of Health, Anajatuba, Brazil; ‡Maranhão State Quality of Life Management, São Luís, Brazil; §Ministry of Health, Brasilia, Brazil; ¶Instituto Adolfo Lutz, São Paulo, Brazil; #University of São Paulo Medical School, São Paulo, Brazil

Main Article

Table 2

Adjusted analysis of risk factors for hantavirus infection in Anajatuba, Maranhão State, Brazil, 2000

Variables PRR (95% CI)a p
First stepb


Illiterate

0.001
No
1

Yes
2.49 (1.45–4.26)

Farm worker

0.025
No
1

Yes
2.44 (1.12–5.32)

Living with a companion

0.022
Yes
1

No
2.05 (1.10–3.80)

Second stepc
Seeing rats in the field

0.013
No
1

Yes
4.22 (1.36–13.11)

Third stepd
Age group

< 0.001
<18 y
1

18–40 y
3.65 (1.34–9.94)

41–64 y
9.56 (3.65–25.04)

>65 y 13.43 (4.86–37.10)

aPRR, prevalence rate ratio; CI, confidence interval.
bAdjusted PRR of socioeconomic variables (block 1).
ePRR of behavioral variables (block 2), adjusted for statistically significant variables in the first step.
dPRR of demographic variables (block 3), adjusted for statistically significant variables in the second step.

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