Table 7.

Univariable analysis for risk factor associated with BVD seropositivity at individual animal level.

Univariable		2014				2015
		OR	95% CI	p-Value		OR	95% CI	p-Value
Sex	Male	–	–	.150	Male	4.73	0.58;38.2	.110
	Female				Female
Species	Sheep	2.02	0.32;12.6	.445	Sheep	0.46	0.12;1.73	.239
	Goat				Goat
Age group	< 1 year	–	–	.279	< 1 year	Baseline		.023
	1–2 years				1–2 years	0.65	0.07;6.33
	> 2 years				> 2 years	4.74	1.10;20.4

Serological results from a repeated cross-sectional study of small ruminants carried out in Tanzania. There were no positive male animals or age groups <1 and 1–2 years in samples from 2014, so it was not possible to obtain OR for the risk factor ‘age group’ or ‘sex’. Multivariate analysis was not possible due to an insufficient number of seropositive animals. p-Values <.05 were considered significant and are in bold text.