Table 5.

Univariable and multivariable analysis for risk factors associated with FMD seropositivity at individual animal level and herd level.

Univariable		2014				2015
		OR	95% CI	p-Value		OR	95% CI	p-Value
Sex	Male	2.98	1.63;5.45	<.001	Male	2.67	1.41;5.03	.002
	Female				Female
Species	Sheep	1.47	0.95;2.27	.086	Sheep	1.94	1.06;3.56	.030
	Goat				Goat
Age group	< 1 year	Baseline		<.001	< 1 year	Baseline		<.001
	1–2 years	1.51	0.58;3.93		1–2 years	0.86	0.43:1.72
	> 2 years	7.52	3.40;16.6		> 2 years	2.98	1.66;5.35
Multivariate
Sex	Male	Baseline		.003	Male	Baseline		.001
	Female	3.77	1.58;9.48		Female	4.70	1.91;13.1
Species	Sheep	Baseline	–	.099	Sheep	Baseline		.008
	Goat	1.81	0.90;3.68		Goat	4.19	1.54;13.0
Age group	< 1 year	Baseline			< 1 year	Baseline
	1–2 years	1.51	0.4;5.56	.534	1–2 years	1.21	0.46;3.20	.698
	> 2 years	8.73	2.82;30.5	<.001	> 2 years	9.10	3.10;30.8	<.001
Herd level
District	Ulanga	Baseline			Ulanga	Baseline		.044
	Mvomero	25.1	11.1;73.8	<.001	Kilombero	6.15	1.02;44.7
	Ngorongoro	2.36	0.43;12.2	.298
Interaction with wildlife		1.13	0.36;3.47	.816	Interaction with wildlife	1.52	0.28;8.97	.612
					Interaction with domestic herds	20.7	3.10;262	.005
					Introduction of new animals	0.13	0.01;1.18	.067

Serological results from a repeated cross-sectional study of small ruminants carried out in Tanzania. Factors with p < .2 in univariabale analysis were used in multivariate analysis. p-Values <.05 were considered significant and are in bold text.