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Table 3 Univariable logistic regression model on pig farms for ASF reports between the samplings (n = 233), 2010–2011

From: A longitudinal survey of African swine fever in Uganda reveals high apparent disease incidence rates in domestic pigs, but absence of detectable persistent virus infections in blood and serum

  ASF between
Independent variables OR 95 % CI P-value
Awareness a Not aware about ASF 1   
  Aware about ASF - - -
Biosecurity measures b None 1   
  At least one 1.01 (0.26;3.37) 0.99
Borrow boar No 1   
  Yes - - -
Breed Local 1   
  Improved 0.92 (0.28;3.57) 0.90
Duration of enterprise     
  Less or equal to 10 years 1   
  Greater than 10 years 2.28 (0.61;8.55) 0.21
Ectoparasites control No 1   
  Yes - - 0.99
Farm size Small-scale 1   
  Medium-scale 2.16 (0.61;7.15) 0.21
Feeding swill No 1   
  Yes 0.66 (0.20;2.31) 0.49
Labour Family 1   
  Hired 1.78 (0.38;6.45) 0.41
Pets present on farm No 1   
  Yes 0.64 (0.14;2.33) 0.53
Piglets housing Piglets housing present 1   
  Piglets not housed 1.87 (0.52;8.77) 0.37
Pig housing Pig housing present 1   
  No pig housing - - 0.99
Replacement stock From own stock 1   
  From neighboring farms 1.63 (0.45;7.64) 0.49
Wild pigs (bush pigs) contact No 1   
  Yes 2.04 (0.10;14.19) 0.53
  1. ASF between - Reports of ASF on farms during the one year between the first and second sampling visits
  2. OR odds tatio, CI confidence interval, ASF African swine fever
  3. - indicates that the model was inestimable because of skewed data
  4. aAwareness as a variable encompasses those farms where farmers expressed having knowledge on the symptoms, spread, control and prevention measures for ASF
  5. bBiosecurity measures considered were presence of a fence to the farm, controlled entrance to the pig pens (presence of gate/door) and presence of foot baths