Zhang et al combined the Fibrinogen-to-Prealbumin Ratio (FPR) and Prognostic Nutritional Index (PNI) to evaluate gastric cancer patients following surgery. The authors are from Nontong University and associated hospitals in China.
Parameters:
(1) plasma fibrinogen (units not given. presumed g/L)
(2) serum prealbumin (transthyretin, units not given, may be mg/dL to get reported ratio)
(3) serum albumin in g/L
(4) absolute lymphocyte count in 10^9/L
fibrinogen to prealbumin ratio =
= (fibrinogen) / (prealbumin)
prognostic nutritional index =
= (albumin) + (5 * (absolute lymphocyte count))
FPR
PNI
Score for FPR-PNI
< 0.1036
>= 48.525
0
< 0.1036
< 48.525
1
>= 0.1036
>= 48.525
1
>= 0.1036
< 48.525
2
Score for FPR-PNI
5-Year Overall Survival < 60 Years
5-Year Overall Survival >= 60 Years
0
19%
27%
1
41%
48%
2
72%
65%
from Figure 3
Performance:
• The area under the ROC curve is 0.74 for a patient >= 60 years.
• The area under the ROC curve is 0.62 for a patient < 60 years.
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