Abstract
To determine whether a lack of response to antipyretics was associated with bacteremia, we performed a cross-sectional study involving children with an initial temperature ≥38°C presenting to a pediatric emergency department (ED) from 2012 to 2020 who received an antipyretic and had a blood culture obtained. We assessed the association of resolution of fever at specific time points after antipyretic administration with bacteremia adjusting for age, complex chronic condition, blood culture source, type of antipyretic, and height of temperature. Among 6319 febrile children, 242 (3.8%) had bacteremia. The adjusted odds ratio of bacteremia was 1.6 (95% confidence interval: 1.2-2.2) among children who remained febrile at 180 minutes and 1.7 (1.2-2.4) among children who remained febrile at 240 minutes. Among febrile children presenting to a tertiary care ED for whom a blood culture was obtained, the response to an antipyretic varies based on the presence or absence of bacteremia.
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