Table 1 Respondent’s Socio-demographic Characteristics in 2017, China (N = 130,642)

Sex

Male

68,510

52.4

Female

62,132

47.6

Education

≤9 years

78,491

60.1

> 9 years

52,151

39.9

Age (years)

22–27

28,348

21.7

28–37

51,446

39.4

38–47

35,711

27.3

47–59

15,137

11.6

Residence duration (years)

1–3

36,034

27.6

4–6

34,056

26.1

7–9

23,162

17.7

10–12

13,968

10.7

> 12

23,422

17.9

Community type

Urban

97,276

74.5

Rural

33,366

25.5

Migration range

Across provinces

63,521

48.6

Across cities within the province

43,512

33.3

Across counties within a city

23,609

18.1

CSC

Level 1

11,778

9.0

Level 2

48,024

36.8

Level 3

36,882

28.2

Level 4

33,958

26.0

SSC

Level 1

49,554

37.9

Level 2

45,051

34.5

Level 3

36,037

27.6

Health education

No

33,711

25.8

Yes

96,931

74.2

Health records

No

90,927

69.6

Yes

39,715

30.4