Table 1 Baseline characteristics of subjects stratified according to the Non-NAFLD or NAFLD (mean ± SD)

Male gender, %

16,731 (45.9%)

14,587 (76.8%)

31,318 (56.5%)

< 0.001

Age, years

46.0 ±10.7

48.8 ±9.79

47.0 ±10.5

< 0.001

BMI, kg/m²

22.9 ±2.84

26.1 ±3.06

24.0 ±3.28

< 0.001

 Systolic blood pressure

119 ±16.2

128 ±15.2

122 ±16.5

< 0.001

 Diastolic blood pressure

70.8 ±10.9

77.8 ±10.9

73.2 ±11.3

< 0.001

Waist circumference, cm

79.6 ±8.95

91.6 ±8.23

83.7 ±10.4

< 0.001

FBG, mmol/L

5.12 ±0.885

5.75 ±1.51

5.34 ±1.18

< 0.001

Hba1c, %

5.29 ±0.581

5.67 ±0.923

5.42 ±0.739

< 0.001

Triglycerides, mg/dL

1.37 ±1.03

2.44 ±1.93

1.74 ±1.50

< 0.001

Total cholesterol, mg/dL

4.72 ±0.909

5.02 ±0.996

4.82 ±0.951

< 0.001

High density lipoprotein, mg/dL

1.28 ±0.314

1.07 ±0.242

1.21 ±0.309

< 0.001

Low density lipoprotein, mg/dL

2.67 ±0.733

2.84 ±0.807

2.73 ±0.763

< 0.001

Alanine aminotransferase, IU/L

20.3 ±20.1

35.2 ±27.2

25.4 ±23.9

< 0.001

Aspartate aminotransferase, IU/L

20.1 ±11.1

24.7 ±13.6

21.7 ±12.2

< 0.001

Uric acid, μmol/L

324 ±82.4

397 ±86.1

349 ±90.6

< 0.001

TSH, mIU/L

1.88 ±1.67

1.85 ±1.55

1.87 ±1.63

0.034

FT3, pg/ml

2.59 ±0.895

2.68 ±0.839

2.62 ±0.877

< 0.001

FT4, ng/dl

2.18 ±2.00

2.10 ±1.92

2.15 ±1.97

< 0.001