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Top ten variables of importance predictive of (A) blaCMY and of (B) blaCTX–M genes in publicly available E. coli genomes of swine origin. Variable importance was estimated using Random Forest models. The numbers on the right side of the bars represent unadjusted odds ratio (95% confidence values). “Blue” and “red” colored bars represent positive (odds ratio > 1) and negative (odds ratio < 1) association between dependent and independent variables.
