Table 10 Analysis of association (χ²) between treatment, age, breed, sex, lifestyle, comorbidities (any), clinical signs (any), clinicopathological abnormalities (any), PCR positive test, serological titer and survival

Treatment (yes/no)

χ² = 15.311, df = 1, P = 0.002*

Age

r₍₆₃₎ = -0.028, P = 0.856

Breed

χ² = 17.165, df = 4, P = 0.144

Sex

χ² = 3.112, df = 3, P = 0.960

Lifestyle

χ² = 0.889, df = 1, P = 0.889

Comorbidities (any)

χ² = 0.381, df = 1, P = 0.944

Cutaneous clinical signs

χ² = 1.693, df = 1, P = 0.638

Mucocutaneous clinical signs

χ² = 3.100, df = 1, P = 0.377

Ocular clinical signs

χ² = 3.742, df = 1, P = 0.291

Respiratory clinical signs

χ² = 1.098, df = 1, P = 0.778

Systemic clinical signs

χ² = 6.014, df = 1, P = 0.111

Anemia

χ² = 0.669, df = 1, P = 0.881

Hyperproteinemia

χ² = 1.048, df = 1, P = 0.790

Hyperglobulinemia

χ² = 1.495, df = 1, P = 0.683

Hypergammaglobulinemia

χ² = 2.252, df = 1, P = 0.522

Hypoalbuminemia

χ² = 1.927, df = 1, P = 0.588

Azotemia

χ² = 5.555, df = 1, P = 0.135

Proteinuria

χ² = 2.233, df = 1, P = 0.526

PCR +ve 

χ² = 9.932, df = 2, P = 0.128

Serological titer

χ² = 18.920, df = 7, P = 0.590