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Table 3 Parameters affecting the abundance of Ixodes ricinus ticks on small mammals in Germany according to factors influencing the prevalence and mean intensity

From: Host–parasite interactions of rodent hosts and ectoparasite communities from different habitats in Germany

Factors affecting prevalence
Predictors OR 95% CI P value
(Intercept) 0.09 0.05–0.16 < 0.001*
Trapping location
 Recreational area Reference   
 Forest 3.19 1.98–5.14 < 0.001*
Season
 Autumn/winter Reference   
 Spring 2.99 1.63–5.47 < 0.001*
 Summer 1.73 1.07–2.78 0.024*
Polyparasitism 4.76 3.65–6.22 < 0.001*
Factors affecting mean intensity
 Predictors IRR 95% CI P value
(Intercept) 0.62 0.30–1.28 0.200
Host species
 Myodes glareolus Reference   
 Apodemus flavicollis 2.45 1.76–3.40 < 0.001*
Host sex
 Female Reference   
 Male 1.84 1.33–2.56 < 0.001*
Age category
 Juvenile Reference   
 Young adult 1.79 1.04–3.07 0.034*
 Adult 1.76 1.00–3.09 0.049
Season
 Autumn/winter Reference   
 Spring 2.01 1.14–3.55 0.016*
 Summer 0.97 0.64–1.47 0.888
  1. IRR, Incidence rate ratio; OR, odds ratio
  2. *Significant effect at P ≤ 0.05