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Table 5 Mean prevalence [%] at the pen level of on-farm indicators and p-value of the t-test for age group 1 (n = 669 pens) and age group 2 (n = 532 pens)

From: Health Monitoring of Fattening Pigs – Use of Production Data, Farm Characteristics and On-Farm Examination

Indicator age group 1 age group 2 p-value correction factor
mean SD Mean SD
bursa auxiliaris 63.0 23.4 76.4 17.8 < 0.0001 1.21
bursitis 1.7 3.7 2.4 4.4 0.0012 1.41
faecal skin dirtying 9.0 16.6 12.2 18.6 0.0020 1.36
skin lesions 5.5 9.9 3.0 6.6 < 0.0001 0.54
purulent nasal discharge 2.2 4.8 1.3 3.3 0.0002 0.59
ophthalmic discharge 4.8 7.7 8.9 12.7 < 0.0001 1.85
conjunctivitis 2.9 7.4 5.0 10.3 < 0.0001 1.72
flank biting lesions 2.2 5.9 0.7 2.9 < 0.0001 0.32
tail biting lesions 2.7 8.2 3.2 8.6 0.2694 -*
ear haematoma 1.3 3.5 1.6 3.3 0.1415 -*
ear biting lesions 3.1 7.5 0.9 4.9 < 0.0001 0.29
lameness 1.7 3.7 2.3 4.6 0.0091 1.35
coughing index 1.3 0.1 1.6 0.1 0.0843 -*
  1. * No correction factor calculated because of nonsignificant t-test