• Alejandro Álvaro-Meca, María A Jiménez-Sousa, Dariela Micheloud, Ainhoa Sánchez-Lopez, María Heredia-Rodríguez, Eduardo Tamayo, Salvador Resino, and Group of Biomedical Research in Critical Care Medicine (BioCritic).
• Departamento de Medicina Preventiva y Salud Pública, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain.
• Popul Health Metr. 2018 Feb 12; 16 (1): 4.

BackgroundSepsis has represented a substantial health care and economic burden worldwide during the previous several decades. Our aim was to analyze the epidemiological trends of hospital admissions, deaths, hospital resource expenditures, and associated costs related to sepsis during the twenty-first century in Spain.MethodsWe performed a retrospective study of all sepsis-related hospitalizations in Spanish public hospitals from 2000 to 2013. Data were obtained from records in the Minimum Basic Data Set. The outcome variables were sepsis, death, length of hospital stay (LOHS), and sepsis-associated costs. The study period was divided into three calendar periods (2000-2004, 2005-2009, and 2010-2013).ResultsOverall, 2,646,445 patients with sepsis were included, 485,685 of whom had died (18.4%). The incidence of sepsis (events per 1000 population) increased from 3.30 (2000-2004) to 4.28 (2005-2009) to 4.45 (2010-2013) (p < 0.001). The mortality rates from sepsis (deaths per 10,000 population) increased from 6.34 (2000-2004) to 7.88 (2005-2009) to 7.89 (2010-2013) (p < 0.001). The case fatality rate (CFR) or proportion of patients with sepsis who died decreased from 19.1% (2000-2004) to 18.4% (2005-2009) to 17.9% (2010-2013) (p < 0.001). The LOHS (days) decreased from 15.9 (2000-2004) to 15.7 (2005-2009) to 14.5 (2010-2013) (p < 0.001). Total and per patient hospital costs increased from 2000 to 2011, and then decreased by the impact of the economic crisis.ConclusionsSepsis has caused an increasing burden in terms of hospital admission, deaths, and costs in the Spanish public health system during the twenty-first century, but the incidence and mortality seemed to stabilize in 2010-2013. Moreover, there was a significant decrease in LOHS in 2010-2013 and a decline in hospital costs after 2011.

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