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

Table 7.

Final models for health outcomes from arrival through 3 weeks.

Outcome	Variable	Value		OR/Est	95% CI/SE	p-value
BRD Morbidity	TxGroup	META		Ref	Ref	Ref
	TxGroup	NO META		3.07	1.70–5.52	0.0002
	Weight at arrival	232 (kg)		Ref	Ref	Ref
	Weight at arrival	Difference (kg)		0.98	0.96–0.99	0.006
Crude Mortality	TxGroup	META		Ref	Ref	Ref
	TxGroup	NO META		1.19	0.27–5.20	0.82
	BRD Treatment	Yes		16.68	3.33–83.45	0.0006
	BRD Treatment	No		Ref	Ref	Ref
Average daily gain	TxGroup	META		0.23	0.07	0.002
	TxGroup	NO META		Ref	Ref	Ref
	BRD Treatment x FeverAR	BRD	Fever	−0.71	0.27	0.01
		Y	Y	Ref	Ref	Ref^a
		N	N	1.73	0.24	0.008^b
		Y	N	0.91	0.25	0.0003^c
		N	Y	1.54	0.26	<0.0001^b

BRD Morbidity is the number of animals treated at least once for BRD over first 3 weeks of the study period. Crude Mortality includes all animals who died over the first 3 weeks after arrival. ^#TxGroup (META or NO META) was included in all multivariable models, regardless of p-value. Weight at arrival input is difference in kg from median weight (232 kg). TxGroup, treatment group; BRD, bovine respiratory disease; ADG, average daily gain (kg/day); MH, Mannheimia haemolytica; MDR, multidrug resistant; FeverAR, fever at arrival (rectal temperature > 40°C); Ref, reference; OR, Odds Ratio; CI, confidence interval; SE, standard error; Est, Restricted Maximum Likelihood estimate; 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).