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Table 5 Weight and significance of variables remaining in the best selected model for A. phagocytophilum prevalence in I. ricinus

From: Anaplasma phagocytophilum prevalence in ticks and rodents in an urban and natural habitat in South-Western Slovakia

Variable B S.E. Wald df P Exp(B)
Tick developmental stage (1 = Adults) 1.065 0.140 57.700 1 <0.001 2.901
Site*Year    52.132 2 <0.001  
Site1*Year 1 1.017 0.150 45.709 1 <0.001 2.764
Site1*Year 2 0.974 0.218 19.896 1 <0.001 2.648
Constant –3.793 0.126 900.062 1 <0.001 0.023
  1. Categorical variables codings: Site1, Bratislava; Year 1, 2011; Year 2, 2012; variables removed by backward method were year, site and season; B, parameter estimate; Wald, Wald statistic = test of significance of the regression coefficient; P, significance level