Skip to main content

Table 1 Sample sizes, median and quartile of height and BMI between obese and control groups in the 1996 and 2006 surveys

From: Family-related risk factors of obesity among preschool children: results from a series of national epidemiological surveys in China

  Boys Girls
Age (years) n Height in cm (M ± Q) BMI in kg/m2 (M ± Q) n Height in cm (M ± Q) BMI in kg/m2 (M ± Q)
  Obese Control Obese Control Obese Control Obese Control
Survey 1996           
3–3.9 76 103.3 ± 7.8 102.1 ± 7.1 20.91 ± 2.07 15.27 ± 2.55 52 104.0 ± 6.7 102.0 ± 7.2 20.29 ± 1.99 16.24 ± 1.35
4–4.9 182 111.5 ± 6.1 109.0 ± 6.0 20.45 ± 1.83 15.30 ± 1.57 106 109.2 ± 5.1 108.3 ± 4.0 20.26 ± 1.41 14.86 ± 1.80
5–5.9 434 117.5 ± 6.6 116.1 ± 6.6 20.79 ± 2.37 15.07 ± 1.58 232 116.0 ± 6.3 115.0 ± 5.8 20.32 ± 1.85 14.89 ± 1.71
6–6.9 542 123.0 ± 5.8 122.0 ± 6.0 21.31 ± 2.08 15.17 ± 1.53 220 122.5 ± 6.2 121.5 ± 6.1 21.35 ± 1.57 14.91 ± 1.83
Survey 2006           
3–3.9 177 105.2 ± 4.4 104.5 ± 6.6 20.33 ± 2.17 15.93 ± 1.18 113 103.4 ± 5.1 101.4 ± 6.1 20.32 ± 1.52 15.34 ± 1.30
4–4.9 490 112.7 ± 6.5 111.0 ± 5.6 20.50 ± 1.92 15.35 ± 1.38 278 111.5 ± 6.5 109.3 ± 6.1 20.14 ± 1.28 15.15 ± 1.40
5–5.9 918 119.0 ± 6.8 117.4 ± 5.6 20.59 ± 1.80 15.37 ± 1.43 379 117.5 ± 7.3 116.5 ± 6.9 20.22 ± 1.86 15.14 ± 1.54
6–6.9 705 124.6 ± 6.1 123.5 ± 5.8 21.40 ± 2.24 15.47 ± 1.59 238 123.5 ± 7.5 122.1 ± 5.2 20.79 ± 1.38 14.96 ± 1.41
  1. BMI Body mass index, M Median, Q Quartile (P75-P25)