. Author manuscript; available in PMC: 2011 Apr 19.

Published in final edited form as: Clin Gastroenterol Hepatol. 2009 Jun 10;7(10):1104–1112. doi: 10.1016/j.cgh.2009.05.033

Table 1.

Formulae of noninvasive panels for detection of fibrosis used for the study

Formula	Equation

AST to ALT Ratio (AAR)	AST/ALT

AST to Platelet Ratio	AST/Platelet Count × 100

AST to Platelet Ratio Index (APRI)	[(AST/upper limit of normal)/Platelet Count (10⁹/l)] × 100

Cirrhosis Discriminant Score (CDS)	Platelet count	AST/ALT ratio	INR
	>340=0	>1.7=0	<1.1=0
	280–339=1	1.2–1.7=1	1.1–1.4=1
	220–279=2	0.6–1.19=2	>1.4=2
	160–219=3	<0.6=3
	100–159=4		Score is the sum of three (0–11)
	40–99=5		Score is the sum of three (0–11)
	<40=6

FIB4 Index	(Age[years] × AST[U/L])/(platelet [10⁹] X√ALT[U/L])

NAFLD Fibrosis Score	−1.675 + (0.037 × Age[years]) + (0.094 × BMI) + (1.13 × IFG/diabetes [yes=1, no=0]) + (0.99 × AST/ALT) - (0.013 × platelet[10⁹/l]) - (0.66 X albumin[g/dl])

Goteborg University Cirrhosis Index (GUCI)	(AST/ Upper limit of normal ) × INR × 100(Platelet Count)

BARD score	Scale 0–4
	BMI ≥ 28 kg/m² = 1 point
	AST to ALT Ratio ≥ 0.8 = 2 points
	Diabetes mellitus = 1 point

ULN for AST: 30 in women, 35 in men