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Table 4 Final linear mixed model on ADG in 780 piglets from the four herds

From: The effect of New Neonatal Porcine Diarrhoea Syndrome (NNPDS) on average daily gain and mortality in 4 Danish pig herds

Risk factor Estimate (g/day) SE (g/day) P-value
Intercept (1000 g birth weight) 151 7  
Parity    0.71
  Mature 0   
  Young 5 11  
Birth weight (per 100 g increase) 9 0.6 < 0.001
Diarrhoea2    0.01
  None 0a   
  1 day (during day 1) 4a 6  
  1 day (during day 2–5) -9ab 5  
  >1 day -14b 5  
Diarrhoeal status of litter    < 0.001
  Mildly affected 0   
  Severely affected -38 11  
Random effect litter3 42%   
  1. 1Parity was kept in the model due to its biological importance.
  2. 2Levels of diarrhoea with different letters as superscript are significantly different (α < 0.05) when compared pairwise.
  3. 3The random effect of litter is displayed as the Intraclass Correlation Coefficient (ICC).