Table 1. Definitions for the original and modified CTP classifications.

	Child-Turcotte-Pugh Scoring
	Albumin(g/dL)	Bilirubin(mg/dL)	Prothrombin timeprolong (seconds)	Ascites	Encephalopathy
1	>3.5	<2	<4	None	None
2	2.8–3.5	2–3	4–6	Mild	Grade 1–2
3	<2.8	>3	>6	Moderate to severe	Grade 3–4

Modified CTP class 0: Fulfill all criteria of albumin ≧4.0 g/dL, bilirubin ≦0.8 mg/dL, prothromin time prolongation <0 seconds, no ascites and no encephalopathy.

Modified CTP class A: total scores of 5–6 and not fulfilling criteria for class 0; class B: total scores of 7–9; class C: total scores of 10–15.

Abbreviations: CTP, Child-Turcotte-Pugh.