Factors associated with lung cytology as obtained by non-endoscopic broncho-alveolar lavage in group-housed calves

Table 4 Final multivariable linear model for the association of clinical signs and broncho-alveolar lavage fluid characteristics with lymphocyte percentage in broncho-alveolar lavage fluid of 335 group-housed calves

Variable	Category	Regression coefficient β (SE)	P-value	LSM estimate (SE)
Intercept		6.2 (0.34)	< 0.001
Mentation	Alert	Referent		4.1 (0.10)
Mentation	Depressed	- 0.41 (0.19)	0.05	2.6 (0.20)
Age	> 8 weeks	Referent		4.2 (0.12)
	4–8 weeks	- 0.29 (0.11)	0.02	3.1 (0.03)
	4 weeks	- 0.41 (0.27)	0.15	2.7 (0.27)
BALf bloodstaining	Absent	Referent		2.8 (0.12)
BALf bloodstaining	Present	0.32 (0.12)	0.01	3.9 (0.16)

BALf broncho-alveolar lavage fluid. Random herd effect was significant (P < 0.001)

ISSN: 1746-6148