Table 1 Baseline characteristics according to physical activity levels

Men

10,084 (82.2)

6,494 (79.2)

1,806 (84.0)

1,784 (86.1)

Age, years

52.7 ± 16.7

55.0 ± 13.2

52.1 ± 23.2

51.2 ± 13.9

Education

 Middle School &below

6,648 (70.1)

4,499 (73.8)

1,157 (66.8)

992 (60.2)

 High School

1,815 (19.1)

967 (15.9)

391 (22.6)

457 (27.7)

 College & above

1,019 (10.7)

634 (10.4)

185 (10.7)

200 (12.1)

Income, CNY

 < 1,000

1,484 (30.8)

968 (27.7)

278 (34.5)

238 (45.8)

 1,000–3,000

902 (18.7)

711 (20.4)

83 (10.3)

108 (20.8)

 ≥ 3,000

2,430 (50.5)

1,811 (51.9)

445 (55.2)

174 (33.5)

Married

9,279 (97.7)

6,026 (99.7)

1,659 (95.5)

1,594 (96.4)

Current smoker

4,716 (41.6)

2,851 (40.0)

934 (43.5)

931 (45.0)

Current drinker

5,376 (45.7)

3,475 (45.9)

985 (46.2)

916 (44.4)

With family history of diabetes

370 (4.6)

291 (4.6)

37 (4.4)

42 (4.1)

Nighttime sleeping duration, h/day

6.80 ± 1.10

6.90 ± 1.20

6.80 ± 1.10

6.80 ± 1.10

Nap duration, h/day

1.00 ± 1.10

1.02 ± 1.06

0.87 ± 1.00

0.97 ± 1.27

TV hours, h/day

2.50 ± 1.60

2.23 ± 1.80

2.51 ± 1.50

2.71 ± 1.60

Total DASH score

27.9 ± 4.10

28.4 ± 3.90

26.7 ± 4.20

27.3 ± 4.30

Body mass index, Kg/m²

25.2 ± 3.20

25.3 ± 3.30

25.2 ± 3.20

25.2 ± 3.10

Waist circumference, cm

 Men

89.6 (8.6)

89.6 (8.6)

89.3 (8.5)

89.7 (8.2)

 Women

85.0 (9.3)

85.0 (9.3)

84.3 (9.3)

83.8 (7.4)

Systolic blood pressure, mmHg

141 ± 19.0

140 ± 19.8

140 ± 18.9

142 ± 18.3

Diastolic blood pressure, mmHg

83.9 ± 1.8

83.5 ± 10.8

84.1 ± 11.1

84.1 ± 10.6

High density lipoproteins, mmol/L

1.36 ± 0.50

1.40 ± 0.60

1.30 ± 0.40

1.40 ± 0.40

Low density lipoproteins, mmol/L

3.00 ± 0.90

2.90 ± 0.90

3.10 ± 0.90

3.10 ± 0.80

Total cholesterol, mmol/L

5.30 ± 1.20

5.40 ± 1.20

5.30 ± 0.40

5.20 ± 1.60

Triglyceride, mmol/L

1.70 ± 1.50

1.80 ± 1.80

1.70 ± 1.30

1.60 ± 1.40

Fasting blood glucose, mmol/L

6.10 ± 0.40

6.10 ± 0.40

6.10 ± 0.40

6.00 ± 0.30