Table 1.

Definition of H. pylori infection, NAFLD, and NAFLD risk group.

	Item	Value	Standard
H. pylori infection	13C urea breath test	<delta>‰ (30 minutes) minus <delta>‰ (0 minutes)	Positive: ≥4 Negative: <4
NAFLD	Abdominal ultrasound	(i) The near-field echo of the liver is diffusely increased and more than the kidney. (ii) The intrahepatic duct structure is not clear. (iii) The far-field echo of the liver is decreased gradually.	Positive: any two of the three satisfied Negative: none or only one satisfied
NAFLD risk or not	Blood lipid	TG ≥ 1.70 mmol/L	Risk group: one or more of the eight satisfied Nonrisk group: none of the eight satisfied
		TC ≥ 5.20 mmol/L
		HDL-C < 1.00 mmol/L
		LDL-C ≥ 3.10 mmol/L
	Fast plasma glucose	FPG ≥ 6.10 mmol/L
	Blood pressure	SBP ≥ 140 mmHg
		DBP ≥ 90 mmHg
	Body mass index	BMI ≥ 24.90 kg/m2

NAFLD: nonalcoholic fatty liver disease; TG: triglyceride; TC: total cholesterol; HDL-C: high-density lipoprotein cholesterol; LDL-C: low-density lipoprotein cholesterol; FPG: fast plasma glucose; SBP: systolic blood pressure; DBP: diastolic blood pressure; BMI: body mass index.