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Table 2 Participants’ characteristics and the comparison with the Standardized Growth Charts for Chinese Children (urban version, 2015) (Mean ± SD)

From: Accelerated skeletal maturation is associated with overweight and obesity as early as preschool age: a cross-sectional study

   Weight (kg) Height (cm)
N (N1, N2) Chinese’s Standard Group 1 Group 2 Total Chinese’s Standard Group 1 Group 2 Total
Male
 3.0 ~ < 3.5 40 (0, 40) 15.5 ± 2.0 16.3 ± 2.0* 16.3 ± 2.0* 99.4 ± 4.0 99.6 ± 4.1 99.6 ± 4.1
 3.5 ~ < 4.0 84 (13, 71) 16.6 ± 2.2 20.2 ± 2.2** 17.2 ± 2.5* 17.7 ± 2.6** 103.2 ± 4.1 104.9 ± 3.9 101.8 ± 4.3** 102.3 ± 4.4
 4.0 ~ < 4.5 93 (31, 62) 17.8 ± 2.5 20.8 ± 2.5** 18.7 ± 2.6** 19.4 ± 2.8** 106.7 ± 4.2 107.1 ± 3.3 106.9 ± 4.6 106.9 ± 4.2
 4.5 ~ < 5.0 151 (41, 110) 19.0 ± 2.8 23.4 ± 3.7** 19.1 ± 2.2 20.3 ± 3.3** 110.1 ± 4.5 111.8 ± 5.2* 109.2 ± 4.1* 109.9 ± 4.6
 5.0 ~ < 5.5 148 (40, 108) 20.4 ± 3.1 26.2 ± 4.1** 20.6 ± 3.1 22.1 ± 4.2** 114.1 ± 4.6 116.9 ± 4.4** 112.7 ± 4.5** 113.9 ± 4.8
 5.5 ~ < 6.0 148 (39, 109) 21.7 ± 3.5 27.0 ± 3.2** 22.3 ± 4.2 23.5 ± 4.6** 117.1 ± 4.7 118.3 ± 4.7 116.2 ± 5.1 116.8 ± 5.1
 6.0 ~ < 7.0 66 (37, 29) 23.7 ± 4.0 29.4 ± 4.7** 24.4 ± 3.9 27.2 ± 5.0** 121.8 ± 4.9 123.5 ± 5.5 119.2 ± 6.2* 121.6 ± 6.1
Female
 3.0 ~ < 3.5 41 (0,41) 14.9 ± 1.8 15.5 ± 1.9* 15.5 ± 1.9* 98.3 ± 3.8 98.2 ± 3.4 98.2 ± 3.4
 3.5 ~ < 4.0 69 (11, 58) 16.0 ± 2.0 19.4 ± 1.7** 16.4 ± 1.8 16.9 ± 2.1** 102.0 ± 4.0 104.6 ± 5.0 101.1 ± 3.5 101.6 ± 4.0
 4.0 ~ < 4.5 83 (21, 62) 16.9 ± 2.2 21.4 ± 3.4** 17.1 ± 2.0 18.2 ± 3.1** 105.4 ± 4.1 107.9 ± 4.9* 104.9 ± 4.7 105.6 ± 4.9
 4.5 ~ < 5.0 125 (41, 84) 18.1 ± 2.5 21.8 ± 2.6** 18.5 ± 2.4 19.6 ± 2.9** 108.9 ± 4.4 109.4 ± 4.3 108.5 ± 4.1 108.8 ± 4.2
 5.0 ~ < 5.5 134 (22, 112) 19.5 ± 2.9 25.1 ± 5.2** 20.0 ± 2.8* 20.9 ± 3.8** 112.8 ± 4.5 114.4 ± 6.0 112.3 ± 4.7 112.6 ± 5.0
 5.5 ~ < 6.0 106 (20, 86) 20.7 ± 3.2 26.1 ± 3.3** 21.8 ± 4.2* 22.6 ± 4.4** 116.0 ± 4.6 118.6 ± 5.1* 115.9 ± 5.1 116.4 ± 5.2
 6.0 ~ < 7.0 42 (29, 13) 22.3 ± 3.6 28.9 ± 4.6** 23.2 ± 3.5 27.1 ± 5.0** 120.2 ± 5.0 122.3 ± 5.2* 118.1 ± 5.1 121.0 ± 5.5
  1. Group 1 includes participants with overweight and obesity; Group 2 includes participants with all weights status
  2. *P < 0.05
  3. **P < 0.01 compared with the standard value