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Table 2 Summary of the multiple variable mixed model of the presence of PT 21/28 with sampling cluster fitted as the random effect

From: Herd-level risk factors associated with the presence of Phage type 21/28 E. coli O157 on Scottish cattle farms

Variable

Coefficient

S.E.

p-value

OR

95%CI

Intercept

-5.21

4.44

-

-

-

Mains water to the farmhouse

-8.56

1.25

< 0.0001

0.0002

1.64E-5 : 2.22E-3

Number of positive samples

0.30

0.07

0.0002

1.36

1.19 : 1.56

Y coordinate (1 km)

0.014

0.006

0.026

1.014

1.0027 : 1.026

  1. OR = odds ratio, 95% CI = odds ratio ± 1.96SE. Random effect variance components: sampling cluster = 23.25, residual = 0.11.
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BMC Microbiology

ISSN: 1471-2180

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