Skip to main content

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