Table 4.

Areas under the receiver operating characteristic curves, 95%CI, best threshold, sensitivity and specificity for ALT, AST and GGT identifies NAFLD risk for all participants, females and males.

	AUC	95%CI	Best threshold	Specificity	Sensitivity
All participants (N=14,251)
ALT	0.83	(0.82-0.84)	19.50	0.74	0.77
AST	0.69*	(0.68-0.70)	19.50	0.72	0.56
GGT	0.77*	(0.76-0.78)	17.50	0.72	0.70
Female (N=6,840)
ALT	0.77	(0.74-0.79)	17.50	0.80	0.59
AST	0.63*	(0.61-0.66)	18.50	0.72	0.47
GGT	0.72*	(0.70-0.75)	12.50	0.61	0.74
Male (N=7,411)
ALT	0.79	(0.78-0.80)	23.50	0.75	0.69
AST	0.67*	(0.66-0.68)	20.50	0.71	0.54
GGT	0.70*	(0.69-0.72)	20.50	0.66	0.66

AUC, area under the receiver operating characteristic curve; CI, confidence interval; other abbreviations as in Table 1 .

*P<0.05, compare with ALT.