Published ahead of print on November 14, 2002, doi:10.1164/rccm.200207-682OC
Am. J. Respir. Crit. Care Med., Volume 167, Number 5, March 2003, 695-701
A more recent version of this article appeared on March 1, 2003
Submitted on July 10, 2002
Accepted on November 8, 2002
The epidemiology of severe sepsis in newborns, infants, and children in the U.S
R. Scott Watson1, Joseph A Carcillo1, Walter T Linde-Zwirble2, Gilles Clermont1, Jeffrey Lidicker2, and Derek C Angus1*
1 Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA,
2 Health Process Management, LLC, Doylestown, PA, USA
* To whom correspondence should be addressed. E-mail: angusdc{at}ccm.upmc.edu.
Despite extensive research into the etiology and treatment of severe sepsis, little is known about its epidemiology in children. We sought to determine the age- and sex-adjusted incidence, outcome, and associated hospital costs of severe sepsis in U.S. children using 1995 hospital discharge and population data from 7 states (24% of the US population). Of 1,586,253 hospitalizations in children < 19 years old, 9,675 met ICD-9-CM based severe sepsis criteria, or 42,364 cases of pediatric severe sepsis per year nationally (0.56 cases/1000 population/year). Incidence was highest in infants (5.16/1000), fell dramatically in older children (0.20/1000 in 10 to 14 year olds), and was 15% higher in boys than in girls (0.60 vs. 0.52/1000, p<0.001). Hospital mortality was 10.3%, or 4,383 deaths nationally (6.2/100,000 population). Half of cases had underlying disease (49.0%), and over one-fifth (22.9%) were low birth weight newborns. Respiratory infections (37%) and primary bacteremia (25%) were the most common infections. Mean length of stay and cost were 31 days and $40,600. Estimated annual total costs were $1.97 billion nationally. Severe sepsis is a significant health problem in children and is associated with use of extensive healthcare resources. Infants are at highest risk, especially those of low birth weight.
Key words: outcome, mortality, pediatrics, intensive care
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