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Table 7 Associations obtained between the Actinobacillus pleuropneumoniae, Mycoplasma hyopneumoniae and influenza seropositivities in the sampled herds from Goiás, Brazil, when using Spearman’s coefficient test at *p < 0.05

From: Cross-sectional study of seropositivity, lung lesions and associated risk factors of the main pathogens of Porcine Respiratory Diseases Complex (PRDC) in Goiás, Brazil

Dependent variable Independent variable Coefficient p
Average pulmonary lesion area M. hyopneumoniae seropositivity at slaughter 0.38 0.035
Pneumonia index (PI) M. hyopneumoniae seropositivity at slaughter 0.37 0.041
ApxIV seropositivity in growing animals Well conserved barn curtains −0.48 0.007
ApxIV herd level seropositivity Performing “all-in/all-out” in the maternity facilities −0.39 0.031
M. hyopneumoniae seropositivity in growing animals Protocol for cleaning and disinfecting in growing/finishing phases −0.39 0.034
M. hyopneumoniae seropositivity in growing animals Performing “all-in/all-out” in the growing and finishing facilities −0.46 0.011
M. hyopneumoniae seropositivity at slaughter Other swine herds nearby 0.40 0.028
SIV seropositivity in growing animals Other swine herds nearby 0.42 0.020