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Table 2 Risk factors associated with SBV infection in wild ruminants in Poland in 2013 estimated by multivariable mixed-effects logistic regression model with species as fixed effect ( p< 0.0001)

From: Cross-sectional study of Schmallenberg virus seroprevalence in wild ruminants in Poland at the end of the vector season of 2013

SBV seropositivity OR SE z P > | z | OR 95% CI
Population type      
free-ranging 1* - - - -
captive 3.2 1.3 2.9 0.004 1.4-7.2
Age group      
0-1 years 1 - - - -
>1 year 10.4 11.2 2.2 0.03 1.2-86.4
Part of country      
Western 1 - - - -
Eastern 2.2 0.7 2.6 0.009 1.2-4.1
Province-level density of domestic ruminants      
low 1 - - - -
medium 2.3 0.7 2.8 0.005 1.2-4.1
high 1.6 0.8 2.6 0.4 0.6-4.4
Intercept 0.01 0.01 0.88 <0.001 0.001-0.1
  1. *reference level; n = 580 observations.