Herd and cow characteristics affecting the odds of veterinary treatment for disease – a multilevel analysis

Table 5 Odds ratios (ORs) with 95% confidence intervals (CIs) for the explanatory variables^a significantly associated with veterinary treatment (yes = 1/no = 0), given a disease event (two-level logistic model) for young animals estimated using log likelihood estimation.

Variables	Categories	OR	95% CI
Age	< 2	BL^b
	2 to 15	1.9	0.6	5.8
	> 15	7.5	1.9	30.1
Another animal with an event at the same date	Yes	3.7	1.4	9.5
	No	BL
Disease complex	Lameness	11.4	2.3	56.0
	Other	6.1	1.8	20.8
	Cough	4.4	1.1	18.0
	Gastro-intestinal	BL
Good record-keeping ability	Yes	BL
	No	10.4	1.6	66.9

^a Study month was identified as a confounder and was therefore also included in the model, although not statistically significant and thus not presented in the table.
^b Baseline

ISSN: 1751-0147