Counts of bovine monocyte subsets prior to calving are predictive for postpartum occurrence of mastitis and metritis

Table 6 Parameter estimates for final model selected for 14 days prior to expected calving date

Parameter	β	Standard error	χ²	P value
Intercept	−7.7997	5.2934	–	–
Parity (= 2)	1.5204	2.1404	0.61	0.4346
Parity (> 2, reference)	0	0	–	–
BCS (low, < 3)	−11.753	7.5015	8.86	0.0029
BCS (high, > 3, reference)	0	0	–	–
Vaccine (yes)	−9.9861	6.845	5.67	0.0173
Vaccine (no, reference)	0	0	–	–
CD14⁻ monocyte count (cells/µL)	−0.2536	0.1658	9.23	0.0024
CD14⁺ monocyte count (cells/µL)	0.044	0.0272	20.44	<.0001

Exact p-values calculated from likelihood ratio using a χ² distribution; significance based on the likelihood ratio test.

ISSN: 1297-9716