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Table 4 Multivariate model of F. hepatica to dependent variables

From: Determining the Prevalence and Seasonality of Fasciola hepatica in Pasture-based Dairy herds in Ireland using a Bulk Tank Milk ELISA

Variables in model (model p value) Direction dependent variable Explanation Odds ratio Confidence interval (95 %) p-value
Age heifers first calving (p = 0.0582) Positive vs. Negative 24-30 months vs. <24 months 1.64 0.82, 3.29 0.1630
>30 months vs. <24 months 3.46 1.15, 10.41 0.0269
>30 months vs. 24–30 months 2.11 0.84, 5.31 0.1120
Sampling date (p = <.0001)   June vs. March 1.05 0.90, 1.22 0.5482
August vs. March 1.53 1.28, 1.82 <.0001
November vs. March 2.74 2.16, 3.48 <.0001
August vs. June 1.46 1.24, 1.72 <.0001
November vs. June 2.62 2.08, 3.30 <.0001
November vs. August 1.80 1.49, 2.17 <.0001