Bello-Chavolla et al reported a score for identifying a patient with COVID-19 who has a worse prognosis. This can be used in a triage setting. The author are from multiple institutions in Mexico.
Patient selection: COVID-19
Parameters:
(1) MSL-COVID-19 score of Bello-Chavolla et al
(2) respiratory rate in breaths per minute
(3) oxygen saturation in percent by pulse oximetry
Parameter
Finding
Points
MSL-COVID-19
<= 0
0
1 to 3
1
4 to 7
2
8 to 11
3
>= 12
4
respiratory rate
<= 30 breaths per minute
0
> 30 breaths per minute
2
oxygen saturation
> 91%
0
85 to 91%
5
< 85%
9
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 15
• The higher the score the worse the survival.
Total Score
Risk Category
14-Day Survival
< 4
low
99%
4 to 7
moderate
96%
8 to 11
high
86%
12 to 15
very high
68%
Performance:
• The area under the ROC curve is 0.80 in the training and 0.77 in the validation cohorts.
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