Child-Pugh Score
Calculate the Child-Pugh score to assess cirrhosis severity and estimate survival. Free online medical calculator for healthcare professionals with 5-parameter scoring, Child class, and survival rates.
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About the Child-Pugh Score
The Child-Pugh score (also known as the Child-Pugh-Turcotte score) is a validated clinical scoring system that assesses the severity of liver cirrhosis and predicts patient prognosis. Originally described by Dr. C. Gardner Child and Dr. Jeremiah G. Turcotte in 1964 and later modified by Dr. R. N. H. Pugh in 1973, it has become one of the most widely used tools in hepatology for evaluating liver disease severity. The score uses five clinical and laboratory parameters — serum bilirubin, serum albumin, prothrombin time (INR), ascites, and hepatic encephalopathy — each scored from 1 to 3 points, yielding a total ranging from 5 to 15.
The scoring system classifies patients into three prognostic categories: Class A (5–6 points) indicates well-compensated cirrhosis with 100% 1-year and 85% 2-year survival; Class B (7–9 points) indicates significant functional compromise with 80% 1-year and 60% 2-year survival; and Class C (10–15 points) indicates decompensated liver disease with 45% 1-year and 35% 2-year survival. The biochemical parameters (bilirubin, albumin, INR) provide objective laboratory data, while ascites and encephalopathy require clinical assessment using the West Haven criteria for encephalopathy grading.
The Child-Pugh score is used not only for prognostic assessment but also to guide therapeutic decisions including surgical risk stratification, transjugular intrahepatic portosystemic shunt (TIPS) patient selection, and hepatocellular carcinoma (HCC) management via the BCLC staging system. While the MELD score has largely replaced Child-Pugh for liver transplant allocation due to its use of continuous variables and greater objective discrimination, the Child-Pugh score remains a valuable, intuitive tool for everyday clinical practice and initial patient assessment.
Regional Notes
India: The Child-Pugh score is widely used in Indian hepatology and gastroenterology practice. INASL (Indian National Association for Study of the Liver) guidelines recommend its use for cirrhosis assessment. It is commonly applied in tertiary care hospitals across India for surgical risk stratification and HCC management.
US: AASLD (American Association for the Study of Liver Diseases) guidelines incorporate the Child-Pugh score in their HCC management algorithms and TIPS patient selection. It remains a standard part of hepatology fellowship training and is used in conjunction with MELD for comprehensive liver disease assessment.
UK: EASL (European Association for the Study of the Liver) and British Society of Gastroenterology (BSG) guidelines recommend the Child-Pugh score for initial cirrhosis assessment. NICE guidelines reference it in the context of HCC staging and treatment decisions within the NHS.
Frequently Asked Questions
What is the Child-Pugh score?
The Child-Pugh score is a clinical scoring system that assesses the severity of liver cirrhosis and predicts prognosis. It uses five parameters — serum bilirubin, serum albumin, INR, ascites, and hepatic encephalopathy — each scored 1–3 points, to classify patients into Class A (5–6 pts), B (7–9 pts), or C (10–15 pts), with corresponding 1-year and 2-year survival estimates.
How is the Child-Pugh score calculated?
Each of the five parameters is scored 1–3 points based on predefined cutoffs. Bilirubin <2 mg/dL = 1 pt, 2–3 = 2 pts, >3 = 3 pts. Albumin >3.5 g/dL = 1 pt, 2.8–3.5 = 2 pts, <2.8 = 3 pts. INR <1.7 = 1 pt, 1.7–2.3 = 2 pts, >2.3 = 3 pts. No ascites = 1 pt, mild/moderate = 2 pts, severe = 3 pts. No encephalopathy = 1 pt, grade I–II = 2 pts, grade III–IV = 3 pts. The total score (5–15) determines the Child-Pugh class.
What does Child-Pugh Class A mean?
Child-Pugh Class A (score 5–6) indicates well-compensated cirrhosis with good liver function. Patients in this class have approximately 100% 1-year survival and 85% 2-year survival. They are generally considered safe candidates for elective surgery and have the best prognosis among the three classes.
What is the difference between Child-Pugh and MELD scores?
The Child-Pugh score is a simpler, intuitive system using five clinical and laboratory parameters with categorical scoring. The MELD score uses three continuous laboratory values (bilirubin, INR, creatinine) and is more objective for liver transplant prioritization. While Child-Pugh remains widely used for initial assessment and surgical risk stratification, MELD is preferred by transplant programs for organ allocation.
Can the Child-Pugh score be used for liver cancer staging?
Yes, the Child-Pugh score is incorporated into the Barcelona Clinic Liver Cancer (BCLC) staging system for hepatocellular carcinoma (HCC). It helps determine treatment options including resection, ablation, embolization, and transplantation. The score is also used in other cancer staging systems and to assess surgical risk in patients with cirrhosis undergoing major abdominal surgery.
What are the limitations of the Child-Pugh score?
Limitations include the subjective assessment of ascites and encephalopathy, ceiling effects (only 1–3 points per parameter), and limited discrimination among patients with scores at the extremes. The categorical nature can miss subtle changes in liver function. Additionally, two of the five parameters involve subjective clinical judgment, leading to inter-observer variability. The MELD score addresses some of these limitations.
Is the Child-Pugh score used internationally?
Yes, the Child-Pugh score is used worldwide across the US, UK, India, and all other countries. It was originally described by Child and Turcotte in 1964 and later modified by Pugh in 1973. It remains a standard assessment tool in hepatology and gastroenterology globally, appearing in major society guidelines including AASLD (US), EASL (Europe), and INASL (India).
Should clinical decisions be based solely on the Child-Pugh score?
No. The Child-Pugh score is one component of clinical assessment and should not be used alone to guide patient care. It does not replace comprehensive clinical evaluation, diagnostic testing, or professional medical judgment. Results should be interpreted by a qualified healthcare professional in the context of the full clinical picture, including imaging, other laboratory tests, and patient history.