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Risk factors for mortality due to bacteremia and fungemia in childhood.

To define risk factors for mortality due to bacteremia and fungemia of childhood, 242 episodes (for which the mortality rate was 19%) were studied prospectively by univariate and multivariate analyses. The mortality rate was higher in neonates (23%) and in individuals 10-18 years old (26%) than in infants and young children (10%-16%). The mortality rate was 29% for children who had neutropenia, 29% for those who had received therapy with steroids, 26% for those who had received antibiotics, and 75% for those who were in septic shock. The fatality rates for polymicrobial bacteremia (40%), recurrent bacteremia (67%), and hospital-acquired bacteremia (28%) were higher than those for other types of bacteremia; the fatality rate was related to inappropriate empiric antibiotic treatment or to the specific organism isolated (mortality rates associated with the latter ranged from 0 to 60%). Seven variables that independently and significantly affected mortality were defined with use of multivariate logistic regression analysis: septic shock (odds ratio [OR], 26.4); polymicrobial (OR, 5.4), recurrent (OR, 4.5), or hospital-acquired (OR, 4.3) bacteremia; candidemia (OR, 3.6); inappropriate antibiotic treatment (OR, 2.4); and neutropenia (OR, 2.3). These variables should be considered for adequate management of bacteremic patients who are at high risk for death.