Fig. 1

Averaged Bayesian network that includes all potential risk factors and events for MRSA clonal groups. The network was built by averaging 1000 networks learned from bootstrap resampling of the data. The averaged network included only significant arcs. T and C followed by a 2-digit sequence indicate acquisition and carriage events for the associated strain, respectively (e.g., T01 and C01 denote acquisition and carriage for USA100, T03 and C03 for USA300). AB, antibiotic use in the previous 3 months (0 = Non-exposed, 1 = Exposed); Hosp, hospitalizations in the previous 3 months (0 = Non-exposed, 0 = Exposed); Dev, invasive device (0 = Non-exposed, 1 = Exposed); Wnd, wound (0 = Non-exposed, 1 = Exposed); Comorb, comorbidities (0 = Non-severe, 1 = Severe); Func, functional status (0 = Non-severe, 1 = Severe); Cogn, cognitive status (0 = Non-severe, 1 = Severe)