Table 7. Odds ratios showing the likelihood of isolates being methicillin-resistant in Staphylococcus pseudintermedius isolates from dogs in Australia for different combinations of site of infection in the host and exposure of the host to prior antimicrobial treatment.

Prior antimicrobial treatmenta	Surgical site		Skin and soft tissue
	n	OR; 95%CI	n	OR; 95%CI
No	19	5.4; 1.65–17.39	96	2.9; 1.32–6.45
Yes	23	15.7; 5.37-46-19	42	6.1; 2.51–14.84

^a Reference value isolates obtained from dogs with ear infections that did not receive prior antimicrobial treatment.