Table 2 The prevalence of major cardiovascular disease (CVD) risk factors by relevant characteristics stratified by gender

Age group, years^a

 < 35

20.6

23.0

0.0

0.0

39.7

32.2

30.2

23.0

28.6

9.2

27.0

11.5

 35–44

45.2

47.8

0.0

1.1

38.1

41.0

42.9

39.3

33.3

13.5

25.0

11.2

 45–54

53.8

52.2

1.0

1.7

44.2

42.5

47.7

48.6

31.7

10.3

22.1

5.0

 55–64

58.0

57.8

1.9

2.0

37.7

46.6

44.9

42.8

33.3

11.2

27.5

10.3

 ≥ 65

70.1

63.9

2.4

1.1

40.2

41.5

48.8

54.6

32.3

9.3

25.2

7.1

 p value

 < 0.001

 < 0.001

0.439

0.658

0.728

0.174

0.130

 < 0.001

0.965

0.707

0.788

0.033

education ^b

 Primary school and lower

54.4 (55.9)

56.1 (55.0)

0.6 (11.9)

2.0 (9.0)

39.8 (48.8)

37.4 (54.2)

41.5 (36.4)

40.5 (42.1)

32.7 (58.3)

8.9 (4.0)

23.4

6.1

 Junior or senior high school

56.9 (52.1)

52.2 (49.3)

1.9 (7.0)

1.3 (8.9)

40.0 (47.3)

45.1 (50.5)

48.6 (42.5)

45.9 (46.1)

35.2 (54.9)

11.9 (2.4)

27.5

9.7

 College and higher

36.4 (39.7)

45.5 (33.1)

0 (5.2)

1.0 (8.9)

42.9 (43.1)

43.4 (42.7)

31.2 (46.9)

48.5 (40.9)

14.3 (50.2)

10.1 (2.7)

15.6

7.1

 p value

0.004

0.146

0.263

0.642

0.886

0.058

0.011

0.172

0.001

0.337

0.069

0.122

Income, thousand yuan per year^b

 < 10

56.5 (43.0)

54.4 (46.0)

0.9 (0.4)

1.1 (0.7)

40.8 (38.3)

37.7 (34.4)

39.9 (33.5)

42.3 (39.2)

28.7 (21.9)

13.0 (13.1)

25.1 (21.6)

9.9 (13.8)

 10 ~ 30

52.5 (41.6)

51.5 (41.1)

1.9 (1.0)

1.7 (1.0)

38.6 (39.5)

42.4 (39.6)

44.2 (38.8)

42.5 (32.5)

36.4 (38.9)

9.7 (10.3)

26.1 (28.9)

7.3 (7.8)

 > 30

53.6 (42.4)

54.0 (42.6)

0.0 (0.0)

1.4 (1.1)

45.4 (45.2)

51.2 (45.2)

58.8 (54.5)

53.6 (45.6)

24.7 (19.1)

10.4 (7.8)

21.6 (18.9)

9.0 (7.1)

 p value

0.640

0.650

0.263

0.780

0.476

0.007

0.007

0.013

0.037

0.281

0.668

0.362