Hartley et al reported the Ebola Infection Risk Score to serve as a triage tool for use in resource poor settings. The score is useful in regions with malaria. The authors are from GOAL Global Dublin and the University of Lausanne.
Patient selection: triage at an Ebola treatment center
Parameters:
(1) contact with Ebola
(2) number of days since first symptom
(3) conjunctivitis
(4) diarrhea
(5) dysphagia
(6) hemorrhage
(7) temperature in °C
(8) myalgia
Parameter
Finding
Points
Ebola contact
no
0
yes
6
number of days
< 4
0
4 to 9
3
> 9
0
conjunctivitis
no
0
yes
4
diarrhea
no
0
yes
3
dysphagia
no
0
yes
2
hemorrhage
no
0
yes
2
temperature
<= 38°C
0
> 38°C
1
myalgia
no
0
yes
-2
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: -2
• maximum score: 21
Total Score
Risk Category
Percentage Ebola
<= 1
very low
3%
2 to 4
low
15%
5 to 7
medium
41%
8 to 11
high
78%
>= 12
very high
98%
Performance:
• The area under the ROC curve corrected for optimism was 0.89.
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