Child Pugh Calculator
Calculate Child-Pugh score from bilirubin, albumin, INR, ascites, and hepatic encephalopathy to classify liver cirrhosis severity.
What Is the Child-Pugh Score?
The Child-Pugh score classifies severity of liver cirrhosis using five clinical and laboratory measures: bilirubin, albumin, INR, ascites, and hepatic encephalopathy. It assigns Class A, B, or C with associated survival estimates. For transplant staging, clinicians often use MELD, but Child-Pugh remains widely used for prognosis and surgical risk. See also the Heart Disease Risk Calculator for cardiovascular context.
Score Interpretation
Class A (5 to 6 points) indicates well-compensated disease with the best prognosis. Class B (7 to 9) shows significant compromise. Class C (10 to 15) reflects decompensation with higher mortality. Elective surgery is generally acceptable in Class A, requires optimization in Class B, and is contraindicated in Class C.
West Haven Encephalopathy Grades
Grade I includes mild confusion or sleep rhythm changes. Grade II adds personality change and disorientation. Grade III is marked disorientation with somnolence. Grade IV is coma. Child-Pugh combines Grade I-II as one category and Grade III-IV as another.
Frequently Asked Questions
What is the maximum Child-Pugh score?
The maximum is 15 points when every parameter scores 3 points. The minimum is 5 when all parameters score 1 point.
What bilirubin units are supported?
Select ranges based on mg/dL with equivalent µmol/L thresholds shown in each option. Use your lab's reported bilirubin value to pick the matching band.
How does ascites severity affect the score?
None scores 1 point. Slight ascites scores 2. Moderate or severe ascites scores 3, including cases that respond poorly to diuretics.
Is Child-Pugh still used clinically?
Yes. It remains common for cirrhosis staging, prognosis, and perioperative risk even though MELD is preferred for transplant listing in many centers.
What one-year survival does Class B imply?
Class B (7 to 9 points) is associated with roughly 80% one-year survival and about 60% two-year survival in classic cohort data.
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