Table III.

Results of a generalized linear mixed modeling of canine leptospirosis in Ontario with veterinary clinic postal code modeled as the random effect in 1998–2006, 1998–2000, and 2001–2006

Covariate	Coefficient	Odds ratio	P-value	95% CI
Generalized linear mixed model for 1998–2006
Urban	0.4177	1.52	0.0881	0.94–2.45
Random effect variance = 0.272, residual = 0.988
Generalized linear mixed model for 1998–2000
Herding breeds	−0.5959	0.55	0.2922	0.19–1.64
Hound breeds	−0.6299	0.53	0.4763	0.10–2.92
Mixed breeds	−0.6694	0.51	0.2224	0.18–1.47
Non-sporting breeds	0.2429	1.27	0.7039	0.37–4.37
Sporting breeds	−2.1028	0.12	0.0014	0.04–0.42
Terrier breeds	−0.8194	0.44	0.2908	0.10–1.96
Toy breeds	−0.4309	0.65	0.5973	0.13–3.13
Working breeds	−0.8441	0.43	0.1703	0.13–1.40
Random effect variance = 0.156, residual = 0.984
Generalized linear mixed model for 2001–2006
Urban	0.6034	1.83	0.0084	1.17–2.86
Random effect variance = 0.123, residual = 0.993

CI — confidence interval.