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Table 1 Cross-sectional univariate descriptives of the China Health and Nutrition Survey across survey years, mean ± SD

From: Age, period and cohort effects and the predictors of physical activity and sedentary behaviour among Chinese children, from 2004 to 2011

 

Survey years

 

2004

2006

2009

2011

All Participants(N)

1692

1357

1198

1617

Age

12.45 ± 3.33

11.91 ± 3.36

11.59 ± 3.19

11.33 ± 3.33

Male(%)

53.0

53.4

55.8

51.1

Overweight/Obese(%)

11.3

12.0

14.5

19.8

PA MET-hours/week

50.00 ± 63.15

47.56 ± 61.78

46.51 ± 56.73

47.14 ± 54.86

SB MET-hours/week

31.76 ± 22.00

34.85 ± 21.00

35.54 ± 21.83

37.62 ± 22.24

% SB in total PA

38.5

42.3

43.3

44.4

Male(N)

896

725

668

826

Age

12.57 ± 3.41

11.86 ± 3.40

11.57 ± 3.23

11.29 ± 3.31

Overweight/Obese(%)

11.7

13.3

16.4

23.4

PA MET-hours/week

57.15 ± 68.65

54.30 ± 68.07

52.66 ± 61.07

53.56 ± 60.52

SB MET-hours/week

31.89 ± 22.89

36.32 ± 23.05

35.06 ± 21.62

38.10 ± 24.48

% SB in total PA

35.8

40.1

40.0

41.6

Female(N)

796

632

530

791

Age

12.30 ± 3.22

11.97 ± 3.31

11.62 ± 3.15

11.38 ± 3.36

Overweight/Obese(%)a

10.8

10.5

12.0

15.9

PA MET-hours/week

47.24 ± 57.27

45.46 ± 54.98

43.66 ± 51.34

44.13 ± 48.49

SB MET-hours/week

31.61 ± 20.97

33.17 ± 18.24

36.16 ± 22.10

37.11 ± 19.62

% SB in total PA

40.1

42.2

45.3

45.7

  1. aUsing the criteria of overweight and obesity for Chinese children
  2. PA physical activity, SB sedentary behaviour
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