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Table 2 Descriptive statistics of clinical signs of finishing pigs after ten weeks of rearing in 46 study herds (continuous variables)

From: Herd-level risk factors for chronic pleurisy in finishing pigs: a case-control study

Variable n Median Min. Max.
Coughing, %
 All herds 46 0.1 0 5.5
 Control herds 25 0 0 5.5
 Case herds 21 0.5 0 1.6
Sneezing, %
 All herds 46 3.4 0 16.0
 Control herds 25 3.9 0 15.3
 Case herds 21 3.3 1.2 16.0
Tear staining, %
 All herds 44 66.0 1.0 100
 Control herds 24 66.9 13 99.0
 Case herds 20 56.1 0.95 100
Runts, %
 All herds 46 0 0 40.0
 Control herds 25 0 0 40.0
 Case herds 21 0 0 1.8
Lameness, %
 All herds 46 1.8 0 8.2
 Control herds 25 1.1 0 8.2
 Case herds 21 1.9 0 4.6
Acute tail biting, %
 All herds 46 0 0 60
 Control herds 25 0 0 3.7
 Case herds 21 0 0 60
Healed tail biting, %*
 All herds 45 10.0 0 94.7
 Control herds 25 4.3 0 33.7
 Case herds 20 13.1 0 94.7
Flank biting, %*
 All herds 46 0 0 50
 Control herds 25 0 0 0.99
 Case herds 21 0 0 50
Sitting, %
 All herds 45 8.1 0 19.0
 Control herds 24 9.0 1 19.0
 Case herds 21 5.9 0 17.5
Neurological signs, %
 All herds 45 0 0 0.9
 Control herds 25 0 0 0
 Case herds 20 0 0 0.9
Conjunctivitis, %
 All herds 46 7.0 0 53.5
 Control herds 25 3.3 0 31.6
 Case herds 21 12.0 0 53.5
Diarrhoea, %
 All herds 46 0 0 0.06
 Control herds 25 0 0 0.04
 Case herds 21 0 0 0.04
Skin scratches, %
 All herds 46 0 0 7.5
 Control herds 25 0 0 0
 Case herds 21 0 0 7.5
  1. * The variables that have a statistically significant association with the main outcome variable (pleurisy) in univariate logistic regression (p ≤ 0.05)