Table 2.

Some of the pig disease codes of Agricultural Data Processing Centre were combined for the evaluation of the data as shown below.

Combined diagnoses used in the study	Diagnoses used from the pig disease list of Agricultural Data Processing Centre
Digestive, infective	Diarrhoea, E. coli diarrhoea, bloody diarrhoea, swine dysentery
Digestive, other	Gastric ulcers, other disorder in stomach, intestinal volvulus, prolapsed rectum, other digestive disorder
Locomotory	Bursitis, nutritional muscular dystrophy, osteochondrosis, porcine stress syndrome, other locomotory disorder, fracture, disorder in claws, laminitis
Nervous	Meningitis, other disease with symptoms of nervous system
Respiratory	Enzootic pneumoniae, actinobacillus pleuropneumoniae, atrophic rhinitis, other pneumonia, inclusion body rhinitis
Skin	Skin infection, trauma, sarcoptic mange, other skin disease
Other	General bacterial infection, systemic disease, microangiopathy, other cardiovascular disorder, anaemia, aggressiveness, surgical action, accident, other preventive medication given for reasons not mentioned