Table 2 Parameters of the refined binomial multiple logistic regression algorithm.

From: Simplified assessment of castration-induced pain in pigs using lower complexity algorithms

Parameters

Estimate

Standard error

p-values

Linear coefficient (α)

 − 3.093

0.457

 < 0.001

Slope coefficients (β)

 Posture 1

5.045

1.161

 < 0.001

 Posture 2

20.221

3067.421

0.995

 Interaction 2

4.194

1.241

 < 0.001

 Interaction 3

20.997

4684.459

0.996

 Wags tail

5.180

1.153

 < 0.001

 Head down

20.688

2684.248

0.993

  1. Pain-free (before castration) or painful (after castration) condition was used as a predictive variable and dummy of each pain-altered behavior of the Unesp-Botucatu Pig Composite Pain Scale as predictor variables.
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