Abstract
Antibiotic exposure in the intensive care unit (ICU) is very high, although 50% of all antibiotics may be unnecessary. We aimed to determine predicting factors, outcomes, and the utility of simple screening tools to avoid antibiotic overuse in the ICU. We analyzed 510 young children who did not receive antibiotics during ICU stay to those treated with antibiotics. The logistic regression analysis revealed that cases were more often older and independently associated with hypernatremia. Cases less often had severe underweight, altered mentation, age-specific fast breathing, lower chest wall in-drawing, adventitious sound on lung auscultation, abdominal distension, developmental delay, hyponatremia, hypocalcemia, and microscopic evidence of invasive diarrhea (for all, p<0.05). The case-fatality rate was significantly higher among the cases than the controls. For predicting 'no antibiotic approach,' the sensitivity of a negative quick Sequential Organ Failure Assessment (qSOFA) was similar to quick Pediatric Logistic Organ Dysfunction-2 (qPELOD-2) and higher than Systemic Inflammatory Response Syndrome (SIRS). In conclusion, 'No antibiotic approach' could be safely adopted in PICU using some simple clinical and laboratory characteristics, particularly in poor resource settings. A negative qSOFA or qPELOD-2 score calculated during PICU admission is superior to SIRS to avoid antibiotic overuse in under-five children.