Table 4.

Antibiotic utilization and patient outcomes.

Timing of antibiotic initiation (n = 126)
<12 h	93 (73.8)
12 h–24 h	11 (8.7)
>24 h	22 (17.5)
Appropriate empirical antibiotic therapy
Based on culture results∗ (n = 129)	115 (89.1)
Based on AMMI guidelines (n = 200)	48 (24)
Mortality (n = 200)
ICU	46 (23)
Hospital	63 (31.5)
ICU length of stay, days, median (IQR)	18.0 (11.6, 27.6)
Duration of mechanical ventilation, days, median (IQR)	16.5 (11.0, 25.0)

Data presented as n (%) unless otherwise indicated; ^∗cultured pathogens were sensitive to the antibiotic therapy chosen. AMMI: Association of Medical Microbiology and Infectious Disease; ICU intensive care unit; and IQR: interquartile range.