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Volume 15, Number 7—July 2009
Research

Risk Factors for Human Infection with Puumala Virus, Southwestern Germany

Anne Caroline SchwarzComments to Author , Ulrich Ranft, Isolde Piechotowski, James E. Childs, and Stefan O. Brockmann
Author affiliations: Bernhard-Nocht-Institute for Tropical Medicine, Hamburg, Germany (A.C. Schwarz); Institut für umweltmedizinische Forschung, Düsseldorf, Germany (U. Ranft); Baden-Württemberg State Health Office, Stuttgart, Germany (I. Piechotowski, S.O. Brockmann); Yale University School of Medicine, New Haven, Connecticut, USA (J.E. Childs)

Main Article

Table 3

Influence of determinants on incidence of nephropathia epidemica, Baden-Württemberg, Germany, 2001–2007*

Determinant Risk ratio† 95% Confidence interval p value‡
Supply of beechnut§ 2.86 1.81–4.50 <0.0001
Cover of beech forest¶ 1.94 1.69–2.22 <0.0001
Cover of seed plant¶ 2.80 2.31–3.40 <0.0001
Winter temperature deviation# 1.70 1.11–2.61 0.0156
Spring temperature deviation# 4.49 2.86–7.06 <0.0001
Human population density** 1.12 1.01–1.23 0.0265
Year of investigation†† NA NA <0.0001

*Multivariate Poisson regression analysis; NA, not applicable.
†Mutually adjusted.
‡Likelihood ratio Test
§Good/excellent crop year referenced to a medium crop year.
¶Unit = 5%.
#Unit = 1°C.
**Unit = 500/km2.
††Dichotomized (Figure 2).

Main Article

Page created: November 08, 2010
Page updated: November 08, 2010
Page reviewed: November 08, 2010
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