Table 1 Cross-sectional univariate descriptives of the China Health and Nutrition Survey across survey years, mean ± SD
From: Age, period and cohort effects on adult physical activity levels from 1991 to 2011 in China
| Â | Survey year | |||||||
|---|---|---|---|---|---|---|---|---|
| Â | 1991 | 1993 | 1997 | 2000 | 2004 | 2006 | 2009 | 2011 |
All Participants (N) | 7993 | 8207 | 7980 | 8548 | 7199 | 7018 | 7078 | 6414 |
 Age (years) | 41.31 ± 14.29 | 42.54 ± 14.65 | 42.11 ± 13.78 | 43.34 ± 13.36 | 46.37 ± 13.23 | 47.62 ± 13.03 | 48.89 ± 13.06 | 50.80 ± 12.92 |
 Male (%) | 49.7 | 50.2 | 50.1 | 49.7 | 47.1 | 46.2 | 47.5 | 46.9 |
 Overweight/Obese (%) | 12.2 | 13.9 | 17.2 | 22.2 | 25.0 | 26.7 | 29.1 | 32.9 |
 Work & domestic MET-hours/week | 427.75 ± 264.35 | 354.43 ± 222.28 | 356.38 ± 231.15 | 304.74 ± 210.46 | 263.08 ± 227.32 | 262.23 ± 232.78 | 249.46 ± 215.88 | 245.99 ± 206.65 |
 Active leisure and travel MET-hours/week | Not measured | 11.00 ± 15.35 | 12.51 ± 16.30 | 9.69 ± 18.43 | 9.28 ± 16.97 | 9.88 ± 17.70 | 11.25 ± 21.88 | |
 Sedentary leisure time (hours/week) | Not measured | 18.47 ± 15.87 | 18.13 ± 15.06 | 19.57 ± 15.77 | 18.64 ± 15.98 | |||
Male (N) | 3976 | 4117 | 4001 | 4250 | 3389 | 3241 | 3360 | 3009 |
 Age (years) | 40.68 ± 13.94 | 41.77 ± 14.26 | 40.90 ± 13.06 | 42.27 ± 12.74 | 45.69 ± 12.75 | 46.98 ± 12.43 | 48.30 ± 12.73 | 50.29 ± 12.70 |
 Overweight/Obese (%) | 9.4 | 11.3 | 15.4 | 21.0 | 23.7 | 26.4 | 29.0 | 32.8 |
 Work & domestic MET-hours/week | 396.42 ± 244.45 | 333.59 ± 208.01 | 353.81 ± 221.81 | 304.07 ± 200.34 | 284.95 ± 231.70 | 281.37 ± 236.20 | 257.41 ± 210.57 | 261.34 ± 206.88 |
 Active leisure and travel MET-hours/week | Not measured | 12.49 ± 17.15 | 13.89 ± 18.45 | 10.52 ± 21.43 | 10.26 ± 19.32 | 10.23 ± 19.30 | 11.94 ± 23.25 | |
 Sedentary leisure time (hours/week) | Not measured | 20.38 ± 16.43 | 20.25 ± 16.75 | 21.17 ± 16.84 | 19.21 ± 20.05 | |||
Female (N) | 4017 | 4090 | 3979 | 4298 | 3810 | 3777 | 3718 | 3405 |
 Age (years) | 41.94 ± 14.60 | 43.31 ± 14.98 | 43.33 ± 14.36 | 44.40 ± 13.86 | 46.98 ± 13.61 | 48.18 ± 13.50 | 49.42 ± 13.33 | 51.24 ± 13.10 |
 Overweight/Obese (%) | 14.8 | 16.2 | 19.0 | 23.2 | 26.2 | 26.9 | 29.3 | 32.9 |
 Work & domestic MET-hours/week | 458.75 ± 279.26 | 375.42 ± 233.93 | 358.96 ± 240.17 | 305.40 ± 220.03 | 243.63 ± 221.58 | 245.80 ± 228.55 | 242.28 ± 220.35 | 232.43 ± 205.53 |
 Active leisure and travel MET-hours/week | Not measured | 9.50 ± 13.14 | 11.24 ± 13.94 | 8.67 ± 13.82 | 8.12 ± 13.57 | 9.45 ± 15.50 | 10.43 ± 20.09 | |
 Sedentary leisure time (hours/week) | Not measured | 17.47 ± 15.44 | 17.15 ± 14.12 | 18.60 ± 14.96 | 17.56 ± 14.65 | |||