The British E. coli O157 in cattle study (BECS): factors associated with the occurrence of E. coli O157 from contemporaneous cross-sectional surveys

Table 7 Final multivariable logistic model for Outcome 1^a for the Scotland data fitted to the England & Wales data

		Scotland			England & Wales
Variable	Value	Coefficient	OR [95% CI]	p-value	Coefficient	OR [95% CI]	p-value
Intercept		−1.04		0.04	−2.088		< 0.0001
Breeding females brought on (BFBO)	No		Baseline			Baseline
Breeding females brought on (BFBO)	Yes	1.71	5.52 [1.81–16.89]	0.003	−0.204	0.815 [0.34–1.94]	0.643
cattle 12–30 months		0.009	1.01 [1.001–1.02]	0.028	0.007	1.007 [0.10–1.02]	0.075
bought other livestock	No	Baseline	1.00		Baseline	1.00
bought other livestock	Yes	−1.45	0.23 [0.07–0.75]	0.015	0.613	1.846 [0.80–4.28]	0.153
season	Autumn	Baseline	1.00		Baseline	1.00
	Winter	−0.53	0.59 [0.16–2.20]	0.433	0.517	1.68 [0.60–4.66]	0.322
	Spring	−2.33	0.10 [0.02–0.56]	0.009	−0.046	0.96 [0.28–3.21]	0.941
	Summer	−0.45	0.64 [0.18–2.30]	0.493	0.546	1.73 [0.60–4.95]	0.310

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