. 2023 Nov 20;10:1256997. doi: 10.3389/fvets.2023.1256997

Table 4.

Final models for MH isolation outcomes at 3 weeks.

Outcome	Variable	Value	OR	95% CI	p-value
MH isolation	TxGroup	META	1.41	0.90–2.22	0.13
MH isolation	TxGroup	NO META	Ref	Ref	Ref
MDR MH isolation	TxGroup	META	13.08	5.54–30.88	<0.0001
	TxGroup	NO META	Ref	Ref	Ref
	BRD Treatment x FeverAR	Interaction	–	–	0.02
		N x N	Ref	Ref	Ref^ab
		Y x Y	9.70	1.63–57.78	0.061^ac
		N x Y	0.18	0.05–0.65	0.009^b
		Y x N	3.83	1.39–10.58	0.01^c
Isolation of MH containing ICE	TxGroup	META	3.43	2.08–5.66	<0.0001
Isolation of MH containing ICE	TxGroup	NO META	Ref	Ref	Ref

BRD treatment (Yes or No) indicates whether an animal received antimicrobials for BRD treatment before 3 week sampling. Weight at arrival input is difference from median weight (232 kg). TxGroup, treatment group; BRD, bovine respiratory disease; MDR, multidrug resistant; MH, Mannheimia haemolytica; Ref, reference; OR, Odds Ratio; CI, confidence interval; META, tulathromycin metaphylaxis; NO META, no tulathromycin metaphylaxis. Values in the same column with different superscripts indicate statistically significant difference (Pairwise Comparison of LS Means Differences, p < 0.05).