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Table 1 Characteristics of participants in each survey

From: Trends in insufficient physical activity among adults in China 2010–18: a population-based study

Characteristics

2010 (n = 97 837)

2013 (n = 175 485)

2015 (n = 188 768)

2018 (n = 183 813)

Gender

 Men

44 734(50.5)

75 063(50.5)

88 590(50.5)

81 533(50.3)

 Women

53 103(49.5)

100 422(49.5)

100 178(49.5)

102 280(49.7)

Age (years)

 18–34

21 805(34.6)

23 994(34.6)

28 399(34.7)

18 608(34.8)

 35–49

35 395(33.1)

56 348(33.1)

53 629(33.2)

43 032(33.1)

 50–64

28 496(20.9)

64 298(20.9)

69 576(20.8)

74 856(20.8)

  ≥ 65

12 141(11.4)

30 845(11.4)

37 164(11.3)

47 317(11.3)

Geographical location

 Urban

44 843(46.5)

80 992(46.0)

76 842(51.8)

74 896(51.7)

 Rural

52 994(53.5)

94 493(54.0)

111 926(48.2)

108 917(48.3)

Ethnicity

 Han

832 242(91.2)

154 958(91.3)

165 189(91.9)

160 859(90.7)

 Others

14 595(8.8)

20 527(8.7)

23 579(8.1)

22 954(9.3)

Education

 Secondary school or less

73 802(71.8)

139 378(72.2)

150 072(68.1)

146 985(64.7)

 High school

15 943(18.0)

24 467(17.1)

24 472(17.1)

23 915(17.6)

 College or above

8 092(10.2)

11 640(10.7)

14 224(14.8)

12 913(17.7)

Occupation

 Agriculture-related work

46 290(44.0)

82 221(42.4)

85 271(35.5)

80 546(33.8)

 Other manual work

3 767(5.7)

7 984(6.3)

7 232(5.8)

5 783(4.9)

 Non-manual work

34 965(38.1)

64 876(40.7)

69 972(45.5)

67 082(47.1)

 Unemployed/students

4 923(6.9)

5 913(5.9)

9 187(7.9)

10 039(8.9)

 Retired

7 892(5.4)

14 491(4.6)

17 106(5.3)

20 363(5.3)

Income per capita (¥)

 Q1

18 860(18.3)

33 505(18.3)

39 289(15.8)

34 096(15.2)

 Q2

18 070(17.0)

27 549(16.8)

35 841(17.4)

31 501(15.8)

 Q3

19 512(19.1)

39 466(23.3)

37 038(20.2)

36 555(20.7)

 Q4

19 058(20.5)

33 549(17.5)

38 809(25.6)

38 497(24.9)

    Refused/do not know

22 337(25.1)

41 416(24.1)

37 791(21.0)

43 164(23.4)

BMI category (kg/m2)

  < 18.5

3 854(4.7)

6 133(4.6)

6 730(4.5)

5 306(4.2)

 18.5–24.9

59 610(62.3)

99 388(59.1)

105 154(58.7)

97 893(55.3)

 25.0–29.9

26 668(27.8)

56 792(30.0)

57 964(30.2)

62 466(32.6)

  ≥ 30.0

5 510(5.2)

11 593(6.3)

11 409(6.6)

12 831(7.9)

  1. Values are n (%) unless otherwise indicated. All percentages were weighted to represent the whole population aged 18 years or older. Values of polytomous variables may not sum to 100% due to rounding. For BMI subgroup analysis, 14 602 participants (195 in 2010, 1 579 in 2013, 7 511 in 2015, and 5 317 in 2018) were excluded due to missing or abnormal BMI values