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Identifying which septic patients have increased mortality risk using severity scores: a cohort study
Charis A Marwick1, Bruce Guthrie, Jan Ec Pringle
1Population Health Sciences Division, Medical Research Institute, University of Dundee, Mackenzie Building, Kirsty Semple Way, Dundee DD2 4BF, UK. c.z.marwick@dundee.ac.uk.
BMC Anesthesiology
|January 4, 2014
Summary
The CURB65 pneumonia severity score effectively predicts sepsis mortality in hospitalized patients. This score demonstrated superior performance compared to other evaluated criteria for risk stratification.
Area of Science:
- Critical Care Medicine
- Infectious Diseases
- Epidemiology
Background:
- Severe sepsis necessitates early, aggressive treatment to reduce mortality.
- Variability in published sepsis severity criteria complicates prompt recognition and intervention.
- Accurate prediction of sepsis-related mortality is crucial for effective clinical management.
Purpose of the Study:
- To evaluate the predictive performance of various sepsis severity scores for in-hospital mortality.
- To compare the effectiveness of different criteria in identifying high-risk sepsis patients.
Main Methods:
- Linked routine outcome data to a prospective cohort of adult inpatients with sepsis.
- Employed logistic regression to analyze associations between mortality and demographic/clinical factors.
- Calculated performance characteristics, including AUROC, for six sets of severity criteria.
Main Results:
- Overall 30-day mortality was 19.4%.
- Older age, emergency admission, and longer prior inpatient stay were associated with increased mortality.
- The CURB65 pneumonia severity score exhibited the best predictive performance (AUROC 0.72).
Conclusions:
- The CURB65 score outperformed five other severity scores in predicting 30-day mortality for hospitalized sepsis patients.
- Further validation is needed to confirm CURB65's utility in clinical practice, especially for sepsis patients admitted directly to the hospital.
