Table 1 Characteristics of participants according to the serum levels of ALT

Age (year)

<0.001

<0.001

35–44(%)

2751(23.8)

2487(23.2)

264(30.7)

1218(22.7)

1533(24.7)

45–54(%)

3598(31.1)

3292(30.7)

306(35.6)

1621(30.3)

1977(31.8)

55–64(%)

3481(30.0)

3257(30.4)

224(26.0)

1634(30.5)

1847(29.7)

≥65(%)

1743(15.1)

1677(15.7)

66(7.7)

884(16.5)

859(13.8)

Sex

<0.001

male(%)

5357(46.3)

4794(44.7)

563(65.5)

female(%)

6216(53.7)

5919(55.3)

297(34.5)

Race

0.431

0.645

Han(%)

10968(94.8)

10148(94.7)

820(95.3)

5071(94.7)

5897(94.9)

Others(%)

605(5.2)

565(5.3)

40(4.7)

286(5.3)

319(5.1)

Current smoking status (%)

4086(35.3)

3757(35.1)

329(38.3)

0.060

3056(57.0)

1030(16.6)

<0.001

Current drinking status (%)

2617(22.6)

2333(21.8)

284(33.0)

<0.001

2434(45.4)

183(2.9)

<0.001

Education (%)

<0.001

<0.001

Primary school or below

5763(49.8)

5391(50.3)

372(43.3)

2232(41.7)

3531(56.8)

Middle school

4717(40.8)

4325(40.4)

392(45.6)

2512(46.9)

2205(35.5)

High school or above

1093(9.4)

997(9.3)

96(11.2)

613(11.4)

480(7.7)

Physical activity (%)

0.886

<0.001

Low

3441(29.7)

3192(29.8)

249(29.0)

1209(22.6)

2232(35.9)

Moderate

7479(64.6)

6912(64.5)

567(65.9)

3851(71.9)

3628(58.4)

High

653(5.7)

609(5.7)

44(5.1)

297(5.5)

356(5.7)

Family income (CNY/year, %)

<0.001

<0.001

≤5000

1441(12.5)

1367(12.8)

74(8.6)

720(13.4)

721(11.6)

5000–20000

6306(54.5)

5864(54.7)

442(51.4)

2870(53.6)

3436(55.3)

>20000

3826(33.0)

3482(32.5)

344(40.0)

1767(33.0)

2059(33.1)

Diabetes

1199(10.4)

1074(10.0)

125(14.5)

<0.001

529(9.9)

670(10.8)

0.119

Hypertension

5914(51.1)

5409(50.5)

505(58.7)

<0.001

2889(53.9)

3025(48.7)

<0.001

Weight(kg)

64.1 ± 11.4

63.5 ± 11.0

71.5 ± 13.3

<0.001

68.6 ± 11.1

60.3 ± 10.1

<0.001

Height(cm)

160.6 ± 8.2

160.4 ± 8.2

163.5 ± 8.3

<0.001

166.4 ± 6.3

155.6 ± 6.1

<0.001

BMI(Kg/m2)

24.8 ± 3.7

24.7 ± 3.6

26.7 ± 4.2

<0.001

24.7 ± 3.5

24.9 ± 3.8

<0.001

WC(cm)

82.4 ± 9.8

82.0 ± 9.7

88.0 ± 10.1

<0.001

83.8 ± 9.8

81.3 ± 9.7

<0.001

SBP (mmHg)

141.8 ± 23.5

141.5 ± 23.5

144.8 ± 22.1

<0.001

143.7 ± 22.6

140.1 ± 24.0

<0.001

DBP(mmHg)

82.1 ± 11.8

81.7 ± 11.7

85.9 ± 12.0

<0.001

83.8 ± 11.8

80.6 ± 11.5

<0.001

FPG (mmol/L)

5.9 ± 1.6

5.9 ± 1.6

6.1 ± 1.6

<0.001

6.0 ± 1.7

5.9 ± 1.6

0.004

TC (mmol/L)

5.2 ± 1.1

5.2 ± 1.1

5.5 ± 1.3

<0.001

5.2 ± 1.0

5.3 ± 1.1

<0.001

TG (mmol/L)

1.6 ± 1.5

1.6 ± 1.4

2.3 ± 2.1

<0.001

1.7 ± 1.6

1.6 ± 1.3

0.145

LDL-C (mmol/L)

2.9 ± 0.8

2.9 ± 0.8

3.1 ± 0.9

<0.001

2.9 ± 0.8

3.0 ± 0.8

<0.001

HDL-C (mmol/L)

1.4 ± 0.4

1.4 ± 0.4

1.3 ± 0.4

<0.001

1.4 ± 0.4

1.4 ± 0.3

0.645

Serum uric acid (mg/dL)

291.9 ± 84.9

288.1 ± 82.6

338.9 ± 97.8

<0.001

333.7 ± 83.5

255.8 ± 67.8

<0.001