Table 4.

Results of unifactorial analyses (factors with pvalue < 0.1) and final multifactorial model (factors with pvalue < 0.05) for EXT (exterior lesions score). R² of final model = 26.12 %. Factors remaining in the final model are in bold letters, and the reference level is in italic letters

factor	factor levels	unifactorial		multifactorial
		p-value	estimate	p-value	estimate
type of buying in criteria**		0.0014		0.0024
	G	0.6629	0.08	0.8411	0.04
	F	0.0011	-0.57	0.0107	-0.47
	E	0.9358	0.01	0.6050	0.08
	D	0.4364	0.12	0.8524	0.03
	C	0.0053	-0.50	0.0010	-0.60
	B	0.5943	-0.07	0.2323	-0.15
	A	*	*	*	*
feed intake/pig/day		0.0040	-0.64	0.0400	-0.48
phosphor reduction		0.0135
	yes	0.0135	-0.26
	no	*	*
costs for disinfection***/pig		0.0137	-0.49	0.0069	-0.53
boar fattening/single sex		0.0479		0.0112
	yes/yes	0.0168	0.36	0.0078	0.38
	no/yes	0.8943	0.01	0.5161	-0.06
	no/no	*	*	*	*
animals sold		0.0531	0.00

* No p-value and estimate for reference level

** For explanation of factor levels see “Discussion/Impact of farm and management characteristics”

*** Within the scope of the final cleaning of the stables