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Table 6 The presence of BVD virus positive animals in the herd logistic regression model

From: Prevalence of Bovine Viral Diarrhoea Virus (BVDV), Bovine Herpes Virus 1 (BHV 1), Leptospirosis and Neosporosis, and associated risk factors in 161 Irish beef herds

  Odds ratio Std. Err. z P > z 95% Conf. interval
No cows in herd 1.025 0.010 2.62 0.009 1.006 1.045
BHV-1herd sero prevalence 1.013 0.006 2.02 0.044 1.000 1.026
Intercept 0.118 0.056 −4.51 0.000 0.046 0.298
  1. No of observations =139
  2. LR chi 2 (2) = 12.98
  3. Prob > chi 2 = 0.0015
  4. Pseudo R 2 = 0.0735
  5. Log likelihood = −81.755