• Matthew Fletcher, Hailey Hodgkiss, Song Zhang, Rachel Browning, Colleen Hadden, Tanja Hoffman, Naomi Winick, and Timothy L McCavit.
• Division of Hematology-Oncology, Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA.
• Pediatr Blood Cancer. 2013 Aug 1;60(8):1299-306.

BackgroundTime-to-antibiotic (TTA) administration is a widely used quality-of-care measure for children with cancer and febrile neutropenia (FN). We sought to determine whether TTA is associated with outcomes of FN.ProcedureA single-center, retrospective cohort study was conducted of 1,628 FN admissions from 653 patients from 2001 to 2009. Outcome variables included (1) an adverse event (AE) composite of in-hospital mortality, pediatric intensive care unit (PICU) admission within 24 hours of presentation, and/or fluid resuscitation ≥ 40 ml/kg within 24 hours of presentation and (2) length of stay (LOS). TTA was measured as a continuous variable and in 60-minute intervals. Mixed regression models were constructed to evaluate associations of TTA with the outcome variables after adjusting for relevant covariates including cancer diagnosis, degree of myelosuppression, and presence of bacteremia.ResultsThe composite AE outcome occurred in 11.1% of admissions including 0.7% in-hospital mortality, 4.7% PICU admission, and 10.1% fluid resuscitation. In univariate analysis, TTA was associated with the composite AE outcome (Odds Ratio [OR] 1.29, 95% CI 1.02-1.64) but not LOS. In multivariate analysis, after adjustment for relevant covariates, 60-minute TTA intervals were associated with the composite AE outcome (61-120 minutes vs. ≤ 60 minutes, OR 1.81, 95% CI 1.01-3.26). Unexpectedly, admission from the emergency department (ED) was also independently associated with the composite AE outcome (ED vs. clinic, OR 3.15, 95% CI 1.95-5.09).ConclusionsTTA and presentation to the ED are independently associated with poor outcomes of FN.Copyright © 2013 Wiley Periodicals, Inc.

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