Complex Links between Natural Tuberculosis and Porcine Circovirus Type 2 Infection in Wild Boar

Table 2

Results of the two GzLMMs to identify drivers of TB lesion presence and PCV2 PCR positivity. The models were fitted using hunting estate as a random factor, a binomial distribution, and a logit link. Parameter estimates (𝛽) for the level of fixed factors were calculated using a reference value of 0 for the “female” and “subadult” levels in the explanatory variables sex and age class, respectively. Significant 𝑃 values are shown in bold.

Explanatory variable	DF	𝐹-value	𝑃	𝛽
TB lesion presence due to PCV2 co-infection model
Sex	1,45	0	0.997	Males = 0.432
Age class	1,45	0	0.991	Piglets = −3.008
Sex * age class	1,45	0.541	0.466	1.343
Body condition	1,45	0	0.983	−17.768
Lymphoid depletion	1,45	0	0.984	Negative = 483.743
PCV2 PCR	1,45	3.238	0.079	Negative = −22.051
Sex * lymphoid depletion	1,45	0	0.997	10.192
Age class * lymphoid depletion	1,45	0	0.991	−40.206
Sex *PCV2 PCR	1,45	0.479	0.493	−1.277
Age class * PCV2 PCR	1,45	4.311	0.044	4.170
Body condition * lymphoid depletion	1,45	0	0.983	−636.392
Body condition * PCV2 PCR	1,45	3.173	0.082	26.055
PCV2 PCR positivity due to TB coinfection model
Sex	1,45	0.770	0.385	Male = 1.394
Age class	1,45	0.012	0.914	Piglet = 0.506
Sex * age class	1,45	0.824	0.369	−1.289
Body condition	1,45	1.863	0.201	12.216
Lymphoid depletion	1,45	2.018	0.162	Negative = −23.261
TB lesion presence	1,45	4.224	0.046	Negative = −21.430
Sex * lymphoid depletion	1,45	1.572	0.216	−3.257
Age class * lymphoid depletion	1,45	1.445	0.236	2.503
Sex * TB lesion presence	1,45	0.162	0.689	−0.578
Age class * TB lesion presence	1,45	2.963	0.092	−2.470
Body condition * lymphoid depletion	1,45	1.810	0.185	29.370
Body condition * TB lesion presence	1,45	4.176	0.047	−25.405