Investigations on the occurrence of tapeworm infections in German horse populations with comparison of different antibody detection methods based on saliva and serum samples

Table 5 Final logistic regression model to identify risk factors explaining positive samples in Anoplocephala serum ELISA

Reference level	Term	Estimate	SE	P-value	Odds ratio	Lower 95% CI	Upper 95% CI
	Pasture cleaning	− 0.219	0.590	0.711	0.804	0.236	2.459
	Pasture change	4.288	1.188	< 0.0001	72.836	10.669	1586.703
	Pasture area (+ 1 ha)	1.317	0.438	0.003	3.732	1.613	9.096
Always pasture access	Sometimes pasture access	− 2.443	0.627	< 0.0001	0.087	0.023	0.274
Always pasture access	No pasture access	− 12.971	1475.0	0.993	2.327×10⁻⁶	8.047×10⁻²³⁰	2.976×10¹⁹
	Foals present	− 3.305	0.692	< 0.0001	0.037	0.008	0.127
	No. of horses (+ 1 horse)	− 0.053	0.014	< 0.0001	0.948	0.921	0.971
Ivermectin + Praziquantel	Pyrantel	2.989	1.108	0.007	19.870	3.363	390.831
	Moxidectin	2.562	1.344	0.057	12.960	1.167	330.938
	Ivermectin	4.048	1.143	< 0.0001	57.261	9.013	1176.149
	Fenbendazole	6.812	1.420	< 0.0001	908.693	79.217	27177.460
	Doramectin	− 11.975	1726.7	0.994	6.300×10⁶	na	3.445×10¹⁴⁹
	FEC strongyle (+1 egg/g)	0.862	0.428	0.044	2.369	1.061	5.751
	Age (+ 1 year)	− 0.043	0.024	0.075	0.958	0.913	1.003
	(Intercept)	− 5.600	1.697	0.001	0.004	0.000	0.072

Pseudo- \(R_{{_{\text{McFadden}} }}^{2}\): 0.41; Pseudo-\(R_{{_{\text{Nagelkerke}} }}^{2}\): 0.54

ISSN: 1756-3305