TABLE 4

Multivariable model with copper tolerance (Cu MIC = 24 mM) as outcome

Serotype/sampleEstimateSEOR (95% confidence interval)P value
Serotype0.0006
    Typhimurium0.23730.33111.27 (0.66–2.43)0.4741
    Heidelberg1.72120.44865.59 (2.31–13.52)0.0002
    OtherReference
Sample type<0.0001
    Fecal1.76330.32665.83 (3.07–11.09)<0.0001
    Feed−1.52571.14770.22 (0.02–2.08)0.1849
    Floor swabReference