Severity score for predicting in-facility Ebola treatment outcome

Area of Science:

• Epidemiology
• Public Health
• Infectious Diseases

Background:

• Sierra Leone faced the highest incidence of the 2013-2016 West African Ebola outbreak.
• Understanding factors influencing Ebola treatment outcomes is crucial for effective patient management.

Purpose of the Study:

• To identify sociodemographic and clinical factors associated with Ebola treatment outcomes in Sierra Leone.
• To develop a predictive in-facility mortality score for Ebola virus disease (EVD) patients.

Main Methods:

• Retrospective analysis of anonymized medical records of 1077 laboratory-confirmed EVD patients.
• Data collected from treatment centers in Sierra Leone between June 2014 and April 2015.
• Development of a predictive score based on clinical and sociodemographic characteristics.

Main Results:

• A predictive model stratified patients into low, medium, and high-risk mortality groups.
• Case Fatality Rates (CFR) were 0.56% (low-risk), 9.75% (medium-risk), and 67.41% (high-risk).
• The score effectively reflects EVD clinical severity.

Conclusions:

• An in-facility mortality risk score for EVD was successfully developed.
• The score can aid in the clinical prioritization of patients with EVD.
• This tool assists healthcare providers in managing critically ill patients during outbreaks.