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

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

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