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Table 5 Parameters affecting the abundance of Ctenophthalmus agyrtes fleas on small mammals in Germany with factors influencing the prevalence and the 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) 0.05 0.02–0.09 < 0.001*
Host species  
 Myodes glareolus Reference   
 Apodemus flavicollis 0.35 0.22–0.55 < 0.001*
Host sex  
 Male Reference   
 Female 0.61 0.42–0.90 0.012*
Season    
 Autumn/Winter Reference   
 Spring 1.64 0.90–3.02 0.108
 Summer 1.82 1.12–2.94 0.015*
Polyparasitism 6.74 5.08–8.94 < 0.001*
Factors affecting mean intensity
Predictors IRR 95% CI P value
(Intercept) 0.23 0.10–0.56 0.001*
Trapping location  
 Recreational area Reference   
 Forest 1.58 1.11–2.25 0.011*
Host sex  
 Male Reference   
 Female 0.72 0.51–1.02 0.064
Season  
 Autumn/winter Reference   
 Spring 1.74 0.91–3.34 0.094
 Summer 2.76 1.68–4.52 < 0.001*
Polyparasitism 1.19 0.98–1.44 0.077
  1. IRR, Incidence rate ratio; OR, odds ratio
  2. *Significant effect at P ≤ 0.05