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Sepsis contributes to as many as half of all hospital deaths in U.S., study says

Date:
May 19, 2014
Source:
American Thoracic Society (ATS)
Summary:
Although it’s present in only a tenth of all patients who are admitted to the hospital, sepsis contributes to up to half of all hospital deaths in the U.S., according to a study. Although many studies have examined the incidence and mortality of patients diagnosed with sepsis in the U.S. over time, the study authors say that so far, the impact of sepsis on overall hospital mortality has been poorly understood.

Although it's present in only a tenth of all patients who are admitted to the hospital, sepsis contributes to up to half of all hospital deaths in the U.S., according to a study presented at the American Thoracic Society's annual conference here.

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Although many studies have examined the incidence and mortality of patients diagnosed with sepsis in the U.S. over time, the study authors say that so far, the impact of sepsis on overall hospital mortality has been poorly understood.

"Our study was designed to quantify the national impact of sepsis on hospitalized patients and to highlight the importance of sepsis care on mortality at a population level," said study lead author Dr. Vincent Liu, M.D., M.S, of the Kaiser Permanente Northern California Division of Research.

For their study, the researchers conducted a retrospective analysis of 6.5 million hospital discharge records derived from the Healthcare Cost and Utilization Project Nationwide Inpatient Sample (NIS) in 2010. The NIS is the largest publicly-available, all-payer inpatient database in the U.S., containing data from 100% of hospital discharges from a stratified sample of community hospitals.

Using diagnosis and procedure codes, the researchers identified hospital admissions and deaths of patients with sepsis and estimated the percentage of total hospital charges associated with sepsis hospitalizations.

At the end of their analysis, they found that sepsis patients had a hospital mortality rate of 10.4% compared to a rate of 1.1% in patients who did not have sepsis. They also found that of all hospital deaths nationally, as many as 52.0% were among patients diagnosed with sepsis. Sepsis hospitalizations also contributed to 21.2% of all hospital charges.

Sepsis is a serious medical issue in the U.S., affecting as many as 750,000 hospitalized patients in the U.S. annually, according to data from the Centers for Disease Control and Prevention (CDC). Between 2000 and 2010, deaths due to septicemia increased 17% despite an overall decline in overall hospitalization rates, and hospital deaths due to septicemia increased from 45,000 to 135,000 during the same period.

According to the Agency for Healthcare Research and Quality (AHRQ), sepsis is the most expensive cause of hospitalization in the United States, accounting for more than $24 billion annually.

"We were surprised to find that as many as 1 in 2 patients dying in US hospitals had sepsis. Teasing apart these findings in a similar regional study of sepsis mortality at Kaiser Permanente Northern California, we found that most patients already had sepsis at the time of hospital admission. There was also a large number of patients with less severe sepsis, a group for whom treatment guidelines are less well-defined," Dr. Liu said. "The results of our study suggest that improved care for sepsis patients of all severity levels and in all hospital settings could result in many future lives saved."


Story Source:

The above story is based on materials provided by American Thoracic Society (ATS). Note: Materials may be edited for content and length.


Journal Reference:

  1. Vincent Liu, Gabriel J. Escobar, John D. Greene, Jay Soule, Alan Whippy, Derek C. Angus, Theodore J. Iwashyna. Hospital Deaths in Patients With Sepsis From 2 Independent Cohorts. JAMA, 2014; DOI: 10.1001/jama.2014.5804

Cite This Page:

American Thoracic Society (ATS). "Sepsis contributes to as many as half of all hospital deaths in U.S., study says." ScienceDaily. ScienceDaily, 19 May 2014. <www.sciencedaily.com/releases/2014/05/140519084559.htm>.
American Thoracic Society (ATS). (2014, May 19). Sepsis contributes to as many as half of all hospital deaths in U.S., study says. ScienceDaily. Retrieved November 25, 2014 from www.sciencedaily.com/releases/2014/05/140519084559.htm
American Thoracic Society (ATS). "Sepsis contributes to as many as half of all hospital deaths in U.S., study says." ScienceDaily. www.sciencedaily.com/releases/2014/05/140519084559.htm (accessed November 25, 2014).

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