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Table 6 Outcomes from three multivariable logit models relating the risk of cattle herd exhibiting high severity fluke infection for the years 2011, 2012 and 2013, respectively

From: Liver fluke (Fasciola hepatica) infection in cattle in Northern Ireland: a large-scale epidemiological investigation utilising surveillance data

Logit   2011 N = 2,472 2012 N = 2,408 2013 N = 2,500
Predictor   OR Sig. OR Sig. OR Sig.
Abattoir 0 1   1   1  
  1 10.790 *** 9.231 *** 16.595 ***
  2 5.021 *** 4.735 *** 2.720 ***
  3 8.209 *** 4.551 *** 11.665 ***
  4 0.221 *** 0.093 *** 0.195 ***
  5 0.483 ** 0.419 ** 0.397 ***
  6 1.438   0.894   1.054  
  7 3.725 *** 6.927 *** 15.264 ***
Rain days mean_rain    1.536 ***   
SD Rain days sd_rain      0.513 *
Max. temp. maxtemp    1.573 *   
Min. temp. mintemp 0.630 ***    0.574 ***
Humidity humidity      0.701 *
Herd type Beef breeding 1   1   1  
  Beef fattening 0.713 * 0.950   0.736  
  Beef rearing 0.943   0.684   0.814  
  Dairy 1.651 *** 2.185 *** 1.062  
  Other 1.102   1.197   0.544 ***
Region Armagh 1   1   1  
  Ballymena 1.810 * 6.192 *** 5.069 ***
  Coleraine 1.191   2.367 *** 3.333 ***
  Derry 0.832   1.158   1.423  
  Dungannon 1.274   2.066 ** 1.021  
  Enniskillen 1.602   1.566   1.850  
  Larne 0.910   3.390 *** 3.948 ***
  Newry 1.043   1.526   1.194  
  Newtownards 1.142   1.629 * 2.136 ***
  Omagh 0.699   1.136   1.830  
  1. Significance (Sig.): * P < 0.05; ** P < 0.01; *** P < 0.001