Volume 15, Number 7—July 2009
Research
Risk Factors for Human Infection with Puumala Virus, Southwestern Germany
Figure 2
![Influence of the year of investigation on the incidence of nephropathia epidemica, indicated by adjusted risk ratios estimated by Poisson regression analysis. 2001 is reference year. Error bars indicate 95% confidence intervals. For controlling covariates, see Table 3.](/eid/images/08-1413-F2.jpg)
Figure 2. Influence of the year of investigation on the incidence of nephropathia epidemica, indicated by adjusted risk ratios estimated by Poisson regression analysis. 2001 is reference year. Error bars indicate 95% confidence intervals. For controlling covariates, see Table 3.
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