Antibiotic Utilization Patterns in Patients with Ventilator-Associated Pneumonia: A Canadian Context

Table 3

Empiric antibiotics initiated (total number of VAP cases = 200).

Agents	Number of VAP cases (%)
Piperacillin-tazobactam	81 ()
Vancomycin	75 ()
Ciprofloxacin	50 ()
Metronidazole	37 ()
Cefazolin	28 ()
Ceftriaxone	16 ()
Meropenem	16 ()
Cefuroxime	7 ()
Gentamicin	7 ()
Ceftazidime	6 ()
Levofloxacin	5 ()
Ampicillin	4 ()
Cefotaxime	4 ()
Cloxacillin	3 ()
Trimethoprim-sulfamethoxazole	2 ()
Others	5 ()

includes: azithromycin, cefepime, erythromycin, linezolid and penicillin, each of which were used in 1 VAP case.
Percentages add up to more than 100% given more than one antibiotic was initiated in many cases.