Fig. 3

Additional analysis on all antibiotic-resistant Gram-negative bacteria (ARGNB), including intrinsically resistant bacteria. Time to first colonization with any Gram-negative bacteria resistant to tobramycin, ceftazidime, ciprofloxacin, meropenem or colistin in patients who were not already colonized with that specific resistant Gram-negative bacteria at time of ICU discharge. Analysis after adjustment for individual ICU. p = 0.16 by Cox regression analysis for the difference between patients treated with selective decontamination of the digestive tract (dashed line; n = 426) or selective oropharyngeal decontamination (solid line; n = 409)