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Table 2 Results of univariable logistic regression analyses of associations between case control farm status for canine distemper virus and explanatory variables

From: Associations between biosecurity and outbreaks of canine distemper on Danish mink farms in 2012–2013

Variable Na Cases Controls OR P value
Vaccinationb 115     
 Yes   47 51 0.20 0.006
 No   14 3 1  
Vaccinationc 101     
 No   14 3 6.46 0.017
 Winter   34 19 2.48 0.08
 Summer   13 18 1  
Has the farmer visited other farms? 81     
 Yes   10 37 0.27 0.007
 No   17 17 1  
Did visitors use plastic boot covers? 114     
 Yes   39 21 2.92 0.005
 No   21 33 1  
Is hand wash possible at entrences/exits?      
 Yes 114 4 25 0.08 <0.0001
 No   56 29 1  
Does the farm have clean and dirty zones at entrances/exits? 114     
 Yes   2 9 0.17 0.020
 No   58 45 1  
Were foxes observed on or around the farm?      
 Yes 104 25 9 5.00 0.0003
 No   25 45 1  
Did farm dogs have access to the farm area?      
 Yes 91 25 32 0.13 <0.0001
 No   29 5 1  
Were cats observed on or around the farm?      
 Yes 114 40 47 0.30 0.012
 No   20 7 1  
Has the farmer purchased or shared equipment used on other farms?      
 Yes 115 4 5 0.69 0.849
 No   57 49 1  
Did the farmer purchase breeding animals from other farms? 113     
 No   10 18 0.41 0.043
 Yes   49 36 1  
  1. aNumber of farmers that answered the question
  2. bVaccination categorized in yes or no regardless of season
  3. cVaccination categorized according to season of vaccination