Table 2.

Statistical comparisons. Statistical comparison between the different groups with univariable Mann–Whitney U¹ rpt. Kruskal–Wallis² test as non-parametric test for not normally distributed data and the multivariable models of analysis of variance and ordinal regression. (* = statistically significant). Groups with higher MICs in bold

	Glyphosate isopropylamine salt (GLY)			Roundup LB plus (RU)
	Mann–Whitney U1/Kruskal–Wallis2 univariable	Multivariable analysis of variance	Multivariable ordinal regression	Mann–Whitney U1/Kruskal–Wallis2 univariable	Multivariable analysis of variance	Multivariable ordinal regression
Isolation time: recent vs. historical	P = 0.0121*	P = 0.006*	P = 0.008*	P < 0.001*	P < 0.001*	P < 0.001*
Host: pig vs. poultry	P = 0.0271*	P = 0.030*	P = 0.031*	P = 0.021*	P = 0.174	P = 0.097
Serovars	P < 0.0012*	P < 0.001*	-	P <0.0012*	P < 0.001*	-
Typhimurium vs Enteritidis	P = 0.1471	P = 0.238	P = 0.381	P = 0.002*	P < 0.001*	P = 0.003*
Typhimurium vs Infantis	P <0.0011	P < 0.001*	-	P < 0.001*	P < 0.001*	-
Enteritidis vs. Infantis	P <0.0011*	P = 0.001*	P < 0.001*	P = 0.030*	P = 0.030*	P = 0.006*