Table 2. Area under the receiver operating characteristic curve (AUC) for NAFLD as defined by the US-FLI.

	Training data (N = 314)		Test data (N = 80)
	OR (95% CI)	AUC (95% CI)	OR (95% CI)	AUC (95% CI)
NAFLD	2.12 (1.77–2.51)	0.81 (0.77–0.86)	1.60 (1.21–2.12)	0.73 (0.61–0.84)
Severe NAFLD	2.26 (1.86–2.73)	0.84 (0.79–0.89)	2.14 (1.39–3.29)	0.81 (0.67–0.93)

NAFLD was defined by US-FLI ≥2; severe NAFLD was defined by US-FLI ≥4Abbreviations: OR: odds ratio; CI: confidence interval.