High prevalence, intensity, and genetic diversity of Trichinella spp. in wolverine (Gulo gulo) from Yukon, Canada

Table 2 Risk factors for Trichinella spp. prevalence and intensity in wolverine (Gulo gulo) identified in final stepwise logistic regression; odd ratios (OR) and its 95% confidence intervals and probability (p)

Model (outcome) (n)	Predictors in the final model		OR	95 CI	p
Trichinella spp. infection (yes/no) [323]	Age	Juvenile			0.001
		Yearling	2.25	1.16–4.36	0.016
		Adult	3.76	1.86–7.60	0.001
	Harvest location	Northwest			0.001
	Harvest location	Southeast	2.87	1.60–5.16	0.001
Trichinella spp. larval burden (high/low) [254]^a	Age	Adult			0.012
		Yearling	2.41	1.28–4.54	0.007
		Juvenile	1.07	0.57–2.00	0.840
	Single vs. co-infection status^b	Trichinella-single species infection			0.002
	Single vs. co-infection status^b	Trichinella-mixed infection	3.33	1.53–7.24

n Animals with complete record for respective model
^aOnly positive samples with Trichinella species were included in the model
^bSingle infection means infection with any one of the listed species Trichinella T6, T. nativa, T. chanchalensis, or T spiralis; co-infection means co-infection with either Trichinella T6 and T. nativa, Trichinella T6 and T. chanchalensis, or T. nativa and T. chanchalensis

ISSN: 1756-3305