Abstract

Objectives This study was performed to evaluate clinical features of community-onset Enterobacter bacteremia and determine the risk factors for Enterobacter bacteremia among patients admitted to the emergency department. Methods A post hoc analysis of a nationwide surveillance database of bacteremia was performed. A total of 53 patients with community-onset Enterobacter bacteremia were compared with 882 patients with Escherichia coli bacteremia. Results As for the underlying disease, solid tumor was more likely common in Enterobacter bacteremia than in E coli bacteremia (39.6% [21/53] vs 19.7% [174/882], P < .001). Neutropenia, indwelling urinary catheter, and tube insertion were significantly more common in Enterobacter bacteremia than in E coli bacteremia (all Ps < .05). As for the site of infection, lung and abdomen were more likely common in Enterobacter bacteremia than in E coli bacteremia, whereas urinary tract was less likely frequent in Enterobacter bacteremia than in E coli bacteremia (all Ps < .05). In the multivariate analysis, pneumonia, tube insertion, solid tumor, and health care–associated infection were found to be significantly associated with Enterobacter bacteremia (all Ps < .05). Conclusions Enterobacter species were important pathogens among community-onset gram-negative bacteremia, in association with health care–associated infections. Pneumonia, tube insertion, solid tumor, and health care–associated infections were found to be significantly associated with Enterobacter bacteremia.

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