Table 4.

Correlation matrix for the FAU “Nose/cheek flattening”.

	Pentobarbital	CO2	Decapitation	Iso	K + X	K + CO2
Pentobarbital	1
CO2	0.164 p = 0.020	1
Decapitation	−0.034 p = 0.633	−0.118 p = 0.097	1
Iso	0.266 p < 0.001	0.670 p < 0.001	−0.154 p = 0.029	1
K + X	0.041 p = 0.568	0.177 p = 0.012	0.087 p = 0.221	0.107 p = 0.13	1
K + CO2	0.339 p < 0.001	0.387 p < 0.001	−0.250 p < 0.001	0.441 p < 0.001	0.242 p = 0.001	1