Table 4 Multivariable logistic regression of F. hepatica status (dependent variable) across other livestock present in farm, treatment count between September 2014 and April 2015 and illness or death due to F. hepatica (independent variables)

Other livestock present in farm

Other livestock present in farm vs treat count before sample vs illness or death due to liver fluke (P = 0.0020)

Horses vs none

10.78

1.18–98.37

0.035

Horses vs beef

9.71

0.99–94.80

0.076*

Treatment frequency before sampling

1 treatment vs 2

0.48

0.21–1.08

0.077*

1 treatment vs 3

0.32

0.13–0.78

0.012

4 treatments vs 2

2.30

0.94–5.60

0.067*

4 treatment vs 1

4.81

1.68–13.77

0.003

Illness or death due to liver fluke

Multiple occasions vs none

19.74

2.37–164.11

0.006

Multiple occasions vs rarely

10.54

1.25–88.97

0.030

Multiple occasions vs not known

12.92

1.33–125.86

0.028