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Table 1 Demographic and clinical characteristics of the study cohort (n = 187)

From: Emergence of antimicrobial resistance to Pseudomonas aeruginosa in the intensive care unit: association with the duration of antibiotic exposure and mode of administration

Characteristics Values
Mean age (SD), years 61 (14)
Male gender, n (%) 129 (69.0)
Mean Simplified Acute Physiology Score 3 score (SD) 59 (12)
Length of stay in intensive care unit, days, mean (range) 29 (2–145)
Previous non-antipseudomonal antibiotics, n (%) 79 (42.2)
Antibiotics during ICU stay
Piperacillin/tazobactam, n (%) 114 (61.0)
Meropenem, n (%) 102 (54.8)
Ceftazidime, n (%) 73 (39.0)
Amikacin, n (%) 72 (38.5)
Ciprofloxacin, n (%) 69 (36.9)
Types of antibiotics received
None 13 (7.4)
1 35 (19.9)
2–3 94 (53.5)
4–5 34 (19.2)
Reason for ICU admission, n (%)
Cardiovascular/vascular 55 (29.4)
Respiratory 46 (24.6)
Neurological 32 (17.1)
Gastrointestinal 25 (13.4)
Sepsis/septic shock 15 (7.5)
Trauma 10 (5.3)
Others 5 (2.7)
Mechanical ventilation, n (%) 160 (83.8)
Therapy with one or more vasopressors, n (%) 169 (88.5)
  1. SD standard deviation