Abdel-Razik et al reported a simple score for predicting spontaneous bacterial peritonitis in a patient with cirrhosis and ascites. The authors are from the University of Mansoura in Egypt
Paitent selection: cirrhosis with ascites
Parameters:
(1) age in years
(2) mean platelet volume (MPV) in fL
(3) neutrophil-to-lymphocyte ratio (NLR)
(4) serum CRP in mg/L
Parameter
Finding
Points
age in years
< 55 years
0
>= 55 years
1
MPV
< 8.5 fL
0
>= 8.5 fL
1
NLR
< 2.5
0
>= 2.5
1
serum CRP
< 40 mg/L
0
>= 40 mg/L
2
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 5
• A score >= 4 is associated with spontaneous bacterial peritonitis.
Performance:
• The area under the ROC curve is 0.89.
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