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Table 2 Multivariable linear regression model for herd-level exposure to Fasciola hepatica

From: Herd-level seroprevalence of Fasciola hepatica and Ostertagia ostertagi infection in dairy cattle population in the central and northeastern Poland

Risk factor Regression coefficient (B) and standard error (SE) 95% confidence interval (95% CI) for regression coefficient t-statistics p-value
Intercept 0.18 (0.02)
The north-eastern province 0.21 (0.02) 0.17, 0.26 9.05 < 0.001a
Length of grazing period (months) 0.03 (0.01) 0.02, 0.04 6.35 < 0.001 a
Grazing grass > 50% of all roughage 0.08 (0.02) 0.04, 0.13 3.38 0.001 a
Hay or haylage as main roughage 0.05 (0.02) 0.01, 0.09 2.03 0.043 a
Grazing on pasture > 6 h 0.06 (0.03) −0.01, 0.12 1.67 0.095
Any grazing grass in roughage −0.03 (0.03) −0.08, 0.03 − 0.89 0.373
Grazing on pasture 0.03 (0.07) −0.11, 0.17 0.38 0.706
  1. a significant risk factor for herd-level exposure to Fasciola hepatica at a significance level of 0.05