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Table 3 Model 1.

From: Porcine reproductive and respiratory syndrome virus (PRRSV) in GB pig herds: farm characteristics associated with heterogeneity in seroprevalence

Variable

Sample size

OR

SE

p

95% CI

 

Herd size

≥ 250 sows

75

reference

    

< 250 sows

27

3.86

1.91

< 0.05

1.46

10.19

Distance to nearest pig herd

< 2 miles

40

reference

    

≥ 2 miles

62

3.42

1.71

< 0.05

1.29

9.12

  1. Multivariable logistic regression model of factors associated with herds that were negative for PRRSV antibodies compared to those seropositive or vaccinated (103 herds in total).
  2. Odds ratio (OR); standard error of the odds ratio (SE); probability function (p); 95% confidence interval (CI) (exp(coefficient+/-(1.96 × standard error)))
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BMC Veterinary Research

ISSN: 1746-6148

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