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Table 5 P-values, estimates, OR’s and CI’s for all explanatory variables for play and non-nutritive sucking behaviour

From: The effect of age when group housed and other management factors on playing and non-nutritive sucking behaviour in dairy calves: a cross sectional observational study

  Play Non-nutritive sucking
P-value Estimate OR 95% CI P-value Estimate OR 95% CI
Age when grouped 0.72 − 0.009 0.99 [0.94; 1.05] 0.44 − 0.03 0.98 [0.92;1.05]
Age when filmed 0.003 − 0.04 0.97 [0.93; 0.99] 0.15 0.02 1.02 [0.99; 1.05]
Age difference in group 0.93 − 0.004 0.99 [0.95; 1.04] 0.65 0.009 1.009 [0.97; 1.06]
Group size 0.41 − 0.13 0.88 [0.63; 1.18] 0.13 0.24 1.27 [0.95; 1.73]
Space per calf 0.09 0.25 1.29 [0.97; 1.80] 0.72 0.07 1.07 [0.77; 1.50]
Sex 0.77 − 0.18 0.84 [0.28; 2.43] 0.93 0.05 1.05 [0.35; 3.23]
Sickness 0.19 − 0.84 0.43 [0.10; 1.34] 0.88 0.12 1.13 [0.24; 4.49]
Organic/conventional farm 0.50 0.37 0.69 [0.26; 2.02] 0.35 − 0.60 0.55 [0.12; 2.07]
Regrouping 0.06 − 0.97 0.38 [0.13; 1.09] 0.96 0.03 1.03 [0.31; 3.84]
Indoor / outdoor rearing 0.34 − 0.58 0.56 [0.16; 1.80] 0.79 0.18 1.19 [0.27; 4.42]
Dry teats 0.11 0.81 2.24 [0.89; 6.90] 0.27 − 0.68 0.51 [0.14; 1.46]
Milk allocation method
 Trough 0 1 0 1
 Drinker bucket with teat 0.17 − 1.55 0.21 [0.04; 0.97] 0.02 − 2.90 0.06 [7.90e−18; 0.28]
 Bowl 0.67 − 0.42 0.66 [0.10; 3.75] 0.57 0.45 1.57 [0.36; 11.46]
  1. P-values, estimates, OR and 95% CI for OR from the logistic regression analyses of the association between the two response variables (play and non-nutritive sucking) and the 12 explanatory variables. Non-significant P-values, OR and CI are noted from immediately before the explanatory variable was dropped based on backwards elimination. Significant P-values are marked in italic. For milk allocation method, ‘Trough’ is the reference to which ‘Drinker bucket with teat’ and ‘bowl’ is compared