Table 2. Accuracy of plasma M30 and serum ALT, AST and GGT for prediction of NAFLD.

	Cut-off, U/L or IU/L*	Sensitivity, %	Specificity, %	PPV, %	NPV, %
Plasma M30	162	95.7	45.0	89.0	69.2
	263	74.2	95.0	98.6	44.2
	278	67.7	100	100	40.0
Serum ALT	27	95.7	55.0	90.8	73.3
	35	90.3	95.0	98.8	67.9
	47	73.1	100	100	44.4
Serum AST	21	92.5	55.0	90.5	61.1
	33†	65.6	100	100	38.5
Serum GGT	32	90.3	50.0	89.4	52.6
	46	78.5	80.0	94.8	44.4
	55	62.4	95.0	98.3	35.2

ALT, alanine aminotransferase; AST, aspartate aminotransferase; GGT, gamma glutamyl transpeptidase; NAFLD, non-alcoholic fatty liver disease; PPV, positive predictive value; NPV, negative predictive value.

* Cut-off with high sensitivity, highest overall accuracy and high specificity were presented.

^†Cut-off for highest overall accuracy and high specificity were the same.