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Volume 10, Number 8—August 2004


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 1

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

Variable PRR (95% CI)a
Male vs. female
1.29 (0.77–2.17)

18–40 y vs. <17 y
4.90 (1.99–12.11)
41–64 y vs. <17 y
13.4 (5.80–30.9)
>65 y vs. <17 y
17.2 (6.62–44.5)
Living with a companion versus living alone
3.62 (2.22–5.93)
Being illiterate
3.33 (1.97–5.62)
Being a farm worker
3.65 (1.90–7.00)
Being a housewife
1.83 (1.10–3.03)
Seeing rats in the wild
5.94 (2.11–16.7)
Being bitten by a rat
3.19 (1.82–5.59)
Being able to recognize wild rats
3.18 (1.69–6.01)
Using dead rats for fishing bait
2.87 (1.20–6.85)
2.61 (1.22–5.57)
Sweeping the home
2.36 (1.04–5.32)
Killing a rat in the field
2.02 (1.22–3.35)
Killing a rat at home
1.99 (1.14–3.47)
Seeing rats at home
1.55 (0.76–3.17)
Bathing in streams
1.55 (0.98–2.46)
Seeing rat feces inside the home
1.28 (0.78–2.10)
Storing grains inside the home 1.08 (0.53–2.20)

aPRR, prevalence rate ratio; CI, confidence interval.

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