“…In the cohort studies, the observed extrinsic RFs were central venous catheter (CVC) placement, 23,25,[50][51][52][53] ICU admission, [54][55][56][57][58] duration of surgery, 13,17,20,24 steroid use, 13,15,59 previous antibiotic use, 55,60 exposure to cephalosporins before the first episode of infection, 58,61 number of administered antibiotics, 53,62 antimicrobial therapy within 90 days, 63 reoperation, 20,64 transfusion, 50,56,64 invasive mechanical ventilation (IMV), 50,52,65 hospitalization time, 66,67 and a high score on the Acute Physiology and Chronic Health Disease Classification System II. 14,55 Other less frequent extrinsic RFs were found ( Supplementary Table S1).…”