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A. BSI, of which 395 (40%) were due to an ESBL-EB. On multivariable analysis, the self-employed risk factors for ESBL-EB BSI included: ESBL-EB on prior tradition (aOR, 12.75; 95% CI, 3.23C50.33; test or Wilcoxon rank-sum test, and categorical variables were compared using the ?2 or Fishers exact test. For the modified analyses, mixed-effects multivariable logistic regression was performed having a random effect for study site, in order to adjust Cxcl12 for the relatedness of results at each center. Bivariable mixed-effects logistic regression, using a total case analysis approach, was used to examine the relationship between each potential risk element and ESBL-EB BSI. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to evaluate the strength of any associations. Variables from bivariable analyses with ideals?less than?.20 were considered for inclusion in the final multivariable model. Manual ahead selection was performed to create the multivariable model. Variables were retained in the…