child_pugh_score: Child-Pugh Score for Cirrhosis Mortality

In cliot: Clinical Indices and Outcomes Tools

Child-Pugh Score for Cirrhosis Mortality

Description

Calculates the Child-Pugh Score (also known as the Child-Turcotte-Pugh Score) to assess the prognosis of chronic liver disease, primarily cirrhosis. The score aggregates five clinical and laboratory measures to categorize patients into Class A, B, or C, which correlates with 1- and 2-year survival rates.

Usage

child_pugh_score(bilirubin, albumin, inr, ascites, encephalopathy,
                 pbc_or_psc = 0, bilirubin_units = "mg/dL",
                 albumin_units = "g/dL")

Arguments

bilirubin	Numeric. Total bilirubin level.
albumin	Numeric. Serum albumin level.
inr	Numeric. International Normalized Ratio (INR).
ascites	String. Degree of ascites. Options: "none" (+1 pt), "slight" (Supressed with meds, +2 pts), "moderate" (Refractory, +3 pts).
encephalopathy	String. Degree of encephalopathy. Options: "none" (+1 pt), "grade_1_2" (or medically controlled, +2 pts), "grade_3_4" (or poorly controlled, +3 pts).
pbc_or_psc	Numeric (0 or 1). Patient has Primary Biliary Cholangitis (PBC) or Primary Sclerosing Cholangitis (PSC). (1 = Yes). If Yes, modified bilirubin thresholds are used (<4, 4-10, >10 mg/dL).
bilirubin_units	String. "mg/dL" (default) or "umol/L".
albumin_units	String. "g/dL" (default) or "g/L".

Value

A list containing:

Child_Pugh_Score	The total calculated score (Range 5-15).
Class	The Child-Pugh Class (A, B, or C).
Life_Expectancy_1_Year	Estimated 1-year survival rate.
Life_Expectancy_2_Year	Estimated 2-year survival rate.

References

Pugh RN, Murray-Lyon IM, Dawson JL, Pietroni MC, Williams R. Transection of the oesophagus for bleeding oesophageal varices. Br J Surg. 1973;60(8):646-649. doi:10.1002/bjs.1800600817

Examples

# Example 1: Class A
# Bili 1.0, Alb 4.0, INR 1.0, No Ascites, No Enceph
child_pugh_score(1.0, 4.0, 1.0, "none", "none")

# Example 2: Class C
# Bili 4.0, Alb 2.0, INR 2.5, Moderate Ascites, Grade 3 Enceph
child_pugh_score(4.0, 2.0, 2.5, "moderate", "grade_3_4")

cliot documentation built on Dec. 1, 2025, 1:06 a.m.